General Aptitude (GA) Questions
Q. 1 – Q. 5 carry one mark each.
Q.1 If 3 ≤ ܺ ≤ 5 and 8 ≤ ܻ ≤ 11 then which of the following options is TRUE?
(A)
ଷ
ହ
≤
≤
଼
ହ
(B)
ଷ
ଵଵ
≤
≤
ହ
଼
(C)
ଷ
ଵଵ
≤
≤
଼
ହ
(D)
ଷ
ହ
≤
≤
଼
ଵଵ
Q.2 The Headmaster ___________ to speak to you.
Which of the following options is incorrect to complete the above sentence?
(A) is wanting
(B) wants
(C) want
(D) was wanting
Q.3 Mahatama Gandhi was known for his humility as
(A) he played an important role in humiliating exit of British from India.
(B) he worked for humanitarian causes.
(C) he displayed modesty in his interactions.
(D) he was a fine human being.
Q.4 All engineering students should learn mechanics, mathematics and how to do computation.
I II III IV
Which of the above underlined parts of the sentence is not appropriate?
(A) I (B) II (C) III (D) IV
Q.5 Select the pair that best expresses a relationship similar to that expressed in the pair:
water: pipe::
(A) cart: road (B) electricity: wire
(C) sea: beach (D) music: instrument
Q. 6 to Q. 10 carry two marks each.
Q.6 Velocity of an object fired directly in upward direction is given by ܸ = 80 − 32 ݐ, where ݐ (time)
is in seconds. When will the velocity be between 32 m/sec and 64 m/sec?
(A) (1, 3/2) (B) (1/2, 1)
(C) (1/2, 3/2) (D) (1, 3
Q.7 In a factory, two machines M1 and M2 manufacture 60% and 40% of the autocomponents
respectively. Out of the total production, 2% of M1 and 3% of M2 are found to be defective. If a
randomly drawn autocomponent from the combined lot is found defective, what is the probability
that it was manufactured by M2?
(A) 0.35 (B) 0.45 (C) 0.5 (D) 0.4
Q.8 Following table gives data on tourists from different countries visiting India in the year 2011.
Country Number of
Tourists
USA 2000
England 3500
Germany 1200
Italy 1100
Japan 2400
Australia 2300
France 1000
Which two countries contributed to the one third of the total number of tourists who visited India in
2011?
(A) USA and Japan
(B) USA and Australia
(C) England and France
(D) Japan and Australia
Q.9 If |−2ܺ + 9| = 3 then the possible value of |−ܺ| − ܺ
ଶ would be:
(A) 30 (B) -30 (C) -42 (D) 42
Q.10 All professors are researchers
Some scientists are professors
Which of the given conclusions is logically valid and is inferred from the above arguments:
(A) All scientists are researchers
(B) All professors are scientists
(C) Some researchers are scientists
(D) No conclusion follows
H:CHEMISTRY (Compulsory)
Q. 1 – Q. 5 carry one mark each.
Q.1 N(CH3)3 and N(SiH3)3are congeners, but around N-atom the former has pyramidal geometry
whereas the latter is nearly planar. The bonding responsible for planarity of N(SiH3)3is
(A)pπpπ (B) pπdπ (C) dπdπ (D) δ
Q.2 The type of electronic transition responsible for the yellow colour of K2CrO4 is
(A)metal to ligand charge transfer
(B)ligand to metal charge transfer
(C)intra-ligand charge transfer
(D)d-d transition
Q.3 The given equation
൬
(ܪ∆)݀
݀ܶ ൰
ܥ∆ =
where ܪ, ܶ and ܥ are the enthalpy, temperature and heat capacity at constant pressure,
respectively, is called
(A) Clausius-Clapeyron equation (B) Hess’s law
(C) Kirchhoff’s equation (D) Trouton’s rule
Q. 4 - Q. 5 are questions with numerical answer.
Q.4 The number of 2-center2-electron bonds in anhydrous AlCl3 is ___________
Q.5 When dissolved in water, the number of H+
ions released from a molecule of H3BO3is _________
Q. 6 - Q. 15 carry two marks each.
Q.6 In NaCl crystal, the arrangement and coordination number of the ions are
(A)fcc and 6 (B) fcc and 4 (C) hcp and 6 (D) hcp and 4
Q.7 The solubility product (Ksp) of Ca3(PO4)2 is 1.3 ×10ିଷଶ
. In a 0.02 M solution of Ca(NO3)2, the
solubility of Ca3(PO4)2 (in units of M) is
(A) 6.5 ×10ିଷଵ (B)1.6 ×10ିଶ (C) 8.0 ×10ିଵ (D) 4.0 ×10ିଵସ
Q.8 Identify the CORRECT product in the following reaction:
(A) (B)
(C) (D)
Q.9 The major product obtained in the following reaction is
(A) (B)
(C) (D)
Q. 10- Q. 11 are questions with numerical answer.
Q.10 Iodine forms an anionic species Q in aqueous solution of iodide(I
). The number of lone pair(s) of
electrons on the central atom of Q is __________
Q.11 The rate of a chemical reaction is tripled when the temperature of the reaction is increased from 298
K to 308 K. The activation energy (in kcal mol1 K
1
, up to one decimal place) for the reaction
is(Given R = 1.987cal mol1 K
1
) _____________
Common Data Questions
Common Data for Questions 12 and 13:
Consider the following SN2 reaction of optically pure 1-chloro-3-ethylcyclopentane (X).
Q.12 The structure of Y in the above reaction is
(A) (B)
(C) (D)
Q.13 The absolute configuration of1-chloro-3-ethylcyclopentane (X) shown above is
(A) (1S,3R) (B) (1S,3S) (C) (1R,3R) (D)(1R,3S)
Linked Answer Questions
Statement for Linked Answer Questions 14 and 15:
The molar conductance at infinite dilution of sodium acetate, sodium sulfate and sulfuric acid solutions are
91.0 ×10ିସ
, 259.8×10ିସ
and 859.3×10ିସS m2 mol1
, respectively.
Q.14 The molar conductance at infinite dilution (in S m2 mol1
)of acetic acid is
(A)1028 ×10ିସ
(B) 820.4 ×10ିସ
(C)690.5 ×10ିସ
(D)390.8×10ିସ
Q.15 If the molar conductance of an acetic acid solution is15.2 ×10ିସSm2 mol1
,then the percentage (%)
dissociation of acetic acid in the solution will be
(A) 3.89 (B) 2.20 (C) 1.85 (D) 1.48
END OF SECTION - H
I:BIOCHEMISTRY
Q. 1 – Q. 10 carry one mark each.
Q.1 Which one of the following statements is TRUE when a cell is kept in a hypotonic
solution?
(A) Water moves out of the cell
(B) Size of the cell remains same
(C) No movement of water takes place
(D) Size of the cell increases
Q.2 Which one of the following amino acids has a higher propensity for cis peptide bond
formation?
(A) Histidine
(B) Cysteine
(C) Glycine
(D) Proline
Q.3 The length of an -helix composed of 36 amino acid residues is
(A) 10 Å
(B) 54 Å
(C) 27 Å
(D) 360 Å
Q.4 The order n for a given substrate concentration in an enzyme catalyzed reaction following
Michaelis-Menten kinetics, is
(A) n = 1 (B) n = 0 (C) n is not defined (D) 0 ≤ n ≤ 1
Q.5 Which one of the following amino acid residues is specifically recognised by chymotrypsin
during peptide bond cleavage?
(A) Phe
(B) Leu
(C) Val
(D) Asp
Q.6 The terminal electron acceptor during mitochondrial respiration is
(A) O2 (B) FAD+
(C) NAD+
(D) ATP
Q.7 During the biosynthesis of urea in the urea cycle, the two nitrogen atoms are derived from
(A) Two free ammonium groups
(B) Free ammonium group and aspartate
(C) Both nitrogen atoms are derived from arginine
(D) One nitrogen atom is derived from citrulline and one from glutamate.
Q.8 An enzyme has two binding sites for an inhibitor molecule. When the inhibitor binds to the
first site, the dissociation constant of the inhibitor for the second site increases, leading to
negative co-operativity. The Hill coefficient for such an inhibitor is
(A) equal to one (B) greater than one (C) less than one (D) less than zero
Q.9 An oligonucleotide was sequenced by the dideoxy method of Sanger and the following
autoradiogram was obtained
The sequence of the oligonucleotide is
(A) 3’-GTCCTGTACA-5’
(B) 5’-GTCCTGTACA-3’
(C) 5’-ACATGTCCTG-3’
(D) 3’-AATTTCCCGG-5’
Q.10 In different types of tissue transplantations, the rate of graft rejection in decreasing order is
(A) Isograft > Xenograft > Allograft
(B) Allograft > Isograft > Xenograft
(C) Xenograft > Autograft > Allograft
(D) Xenograft > Allograft > Isograft
Q. 11 - Q. 20 carry two marks each.
Q.11 You have prepared 1.0 liter of 0.5 M acetate buffer (pH=5.0). The dissociation constant of
acetic acid is 1.7×10-5 M. What would be the acetate ion concentration in the buffer?
(A) 0.1M
(B) 0.25 M
(C) 0.315 M
(D) 0.415 M
Q.12 The following figures show the plot of reaction rate versus substrate concentration (mM)
for an enzyme catalyzed reaction in the presence and absence of an inhibitor. Match the
possible reaction types with the plots.
(P) Competitive inhibition (Q) Substrate inhibition
(R) Michaelis-Menten (S) Non-competitive inhibition
(A) P – i, Q – iii, R – ii, S – iv
(B) P – iii, Q – ii, R – i, S – iv
(C) P – iii, Q – iv, R – i, S – ii
(D) P – iv, Q – ii, R – i, S – iii
Q.13 Arrange the following in the decreasing order of their permeability coefficients across a
lipid bilayer membrane.
(i) Urea
(ii) Glucose
(iii) H2O
(iv) Na+
(v) Tryptophan
(A) (i), (iii), (v), (ii), (iv) (B) (iii), (v), (ii), (iv), (i)
(C) (iii), (i), (v), (ii), (iv) (D) (i), (iii), (iv), (v), (ii)
Q.14 Arrange the following in the increasing order of amount of ATP generated by metabolism
of one molecule of the following compounds.
(i) Anaerobic catabolism of starch with 300 glucose units
(ii) Aerobic catabolism of glucose
(iii) Aerobic catabolism of acetate
(iv) Aerobic catabolism of palmitate
(A) (ii), (iv), (iii), (i) (B) (iii), (ii), (i), (iv)
(C) (iv), (ii), (i), (iii) (D) (iii), (ii), (iv), (i)
Q.15 Match the following enzymes with their regulatory mechanism
(a) Phosphofructokinase 1. Product inhibition
(b) Glycogen synthase 2. Control of enzyme synthesis
(c) β-galactosidase 3. Allosteric interaction
(d) Lactate dehydrogenase 4. Covalent modification
(A) (a)-3, (b)-2, (c)-1, (d)-4
(B) (a)-3, (b)-4, (c)-2, (d)-1
(C) (a)-4, (b)-3, (c)-1, (d)-4
(D) (a)-4, (b)-1, (c)-2, (d)-3
Q.16 A researcher wants to clone 3 DNA fragments of sizes 1.1 Mb, 0.097 Mb and 0.045 Mb.
The choice of the vectors for cloning each of the fragments are
(A) Cosmid, bacteriophage bacteriophage P1
(B) Yeast artificial chromosome, bacteriophage P1cosmid
(C) Bacterial artificial chromosome, bacteriophage , yeast artificial chromosome
(D) Only plasmids
Q.17 Which of the four restriction enzymes given below cut the following DNA sequence?
5’-CCGATATCTCGAGGGC-3’
(P) BamH1 (3’-CCTAG^G-5’)
(Q) XhoI (3’-GAGCT^C-5’)
(R) EcoRI (3’-CTTAA^G-5’)
(S) EcoRV (3’-CTA^TAG-5’)
(A) P & Q (B) P, R & S (C) Q & S (D) P & R
Q.18 You have expressed the following protein that has an isoelectric point of 6.0. The best
order of protein purification methodologies to obtain a pure protein is?
(A) Gel filtration chromatography, Anion exchange chromatography at pH=4.0,
Ammonium sulphate precipitation
(B) Cation exchange chromatography at pH=9.0, Ni-affinity chromatography, Gel filtration
chromatography
(C) Anion exchange chromatography at pH=8.0, Ni-affinity chromatography, Gel filtration
chromatography
(D) Ammonium sulphate precipitation, Anion exchange chromatography at pH=4.0, Niaffinity chromatography
Q.19 An enzyme of 40 kDa is added to a substrate solution in a molar ratio of 1:3. The
concentration of the enzyme in the mixture is 12 mg/ml. What would be the corresponding
substrate concentration?
(A) 0.4 mM (B) 0.12 mM (C) 0.9 mM (D) 0.3 mM
Q.20 A patient suffering from pneumonia and tuberculosis was found to have very low CD4+
T
cells. In all probability the PRIMARY causative infectious agent belongs to
(A) Klebsiella family
(B) Mycobacterium family
(C) Retrovirus family
(D) Streptococcus family
END OF SECTION - I
J:BOTANY
Q. 1 – Q. 10 carry one mark each.
Q.1 Bast fibres are present in
(A) Xylem (B) Phloem (C) Collenchyma (D) Parenchyma
Q.2 During cellular respiratory process, pyruvate must be oxidized to acetyl CoA and CO2 before it
enters the citric acid cycle. The corresponding simplified equation is
Pyruvate + NAD+
+ CoASH Acetyl-S-CoA + NADH + CO2
This oxidation reaction occurs in mitochondria and is carried out in presence of the enzyme
(A) Pyruvate kinase (B) Pyruvate dehydrogenase
(C) Pyruvate decarboxylase (D) Pyruvate carboxylase
Q.3 Which one of the following statements having the terms - gene, chromosome and genome is
CORRECT?
(A) The rice gene contains about 50,000 genomes located on 12 different chromosomes
(B) The rice genome contains about 50,000 genes located on 12 different chromosomes
(C) The rice chromosome contains about 50,000 genes located on 12 different genomes
(D) The rice genome contains about 50,000 chromosomes located on 12 different genes
Q.4 The aflatoxin found in post-harvested grains is injurious to health due to
(A) Aspergillus (B) Alternaria (C) Fusarium (D) Phytopthora
Q.5 Identify the event that exclusively occurs in meiotic cell division
(A) Chromatid formation (B) Spindle formation
(C) Synapsis (D) Chromosome movement to pole
Q.6 In the symbiotic nitrogen fixation process, Leghemoglobin present in the nodule helps in fixing
nitrogen in presence of the enzyme
(A) Nitrate synthetase (B) Nitrate synthase
(C) Glutathione synthetase (D) Nitrogenase
Q.7 Considering environment and ecosystem, identify the INCORRECT statement
(A) In detrital food chain, it is very difficult to measure the energy flow although the use of
radioactive tracers give some idea about the energy flow
(B) The change in species composition, community structure and function over time is ecological
succession
(C) The slower rise of environmental temperature may be attributed to the increase in pollution in
environment which reflects enough solar energy back to other spacer to slow down global
warming
(D) Photoperiodism has no relation with the environment and ecosystem, rather it is a biological
event taking place in every plant
Q.8 The two enzymes commonly used for isolation of protoplasts from plants are
(A) Cellulase and Lipase (B) Cellulase and Amylase
(C) Pectinase and Cellulase (D) Pectinase and Lipase
Q.9 For successful transfer of a foreign gene from the engineered Ti-plasmid to the plant genome, few
cis-acting DNA elements and trans-acting protein factors are very much essential. Select the
CORRECT combination from the following
(A) Opine catabolism genes, Left border sequence, Right border sequence
(B) Opine catabolism genes, Left border sequence, Virulence genes
(C) Hormone biosynthetic genes, Right border sequence, Virulence genes
(D) Left border sequence, Right border sequence, Virulence genes
Q.10 In naturally occurring cytoplasmic male sterility, the molecular determinant is located in
(A) Chloroplast (B) Endoplasmic reticulum
(C) Golgi complex (D) Mitochondria
Q. 11 - Q. 20 carry two marks each.
Q.11 Identify the floral formula with the family and the corresponding plant species
General Floral Formula Family Plant
P. P0 or 2-3, A3 or 3+3, G1 or (3) 1. Liliaceae i. Cocos nucifera
Q. P3+3, A3+3 or 3 / P3+3, G(3) 2. Cannaceae ii. Musa paradisiaca
R. P3+3, A3+3, G(3) 3. Graminae (Poaceae) iii. Maranta bicolor
S. P3+3, A6 or 5, G(3) 4. Palmae (Arecaceae) iv. Canna indica
5. Musaceae v. Allium cepa
6. Marantaceae vi. Oryza sativa
(A)
P-1-iv
Q-2-iii
R-6-i
S-4-ii
(B)
P-2-v
Q-4-vi
R-3-iii
S-5-iv
(C)
P-3-v
Q-6-iii
R-5-i
S-2-ii
(D)
P-3-vi
Q-4-i
R-1-v
S-5-ii
Q.12 A plant of genotype GGHH is crossed with another plant of the genotype gghh. If the F1 is test
crossed, what percentage (%) of the test cross progeny will have the genotype gghh when the two
genes are - (P) unlinked, (Q) completely linked with no crossing over, (R) 10 m.u. (genetic map
unit) apart, (S) 24 m.u. apart?
(A)
P-25
Q-25
R-25
S-25
(B)
P-25
Q-50
R-45
S-38
(C)
P-50
Q-50
R-90
S-76
(D)
P-25
Q-50
R-10
S-24
Q.13 Which two of the following are the CORRECT statements ?
P. Nondisjunction in the parental meiosis is not essential to produce diploid organisms
Q. Nondisjunction in the parental meiosis is essential to produce aneuploid organisms
R. Nondisjunction in the parental meiosis is essential to produce hexaploid organisms
S. Nondisjunction in the parental meiosis is essential to produce tetraploid organisms
(A) P,Q (B) Q,R (C) R,S (D) P,S
Q.14 Identify the correct matching by taking one item from each column
Column -I Column -II Column -III
P. Morphine 1. Cinchona officinalis i. Antineoplastic
Q. Nicotine 2. Hyoscyamus niger ii. Respiratory paralysis
R. Atropine 3. Papaver somniferum iii. Antibacterial
S. Vinblastine 4. Nicotiana tabacum iv. Narcotic analgesic
5. Coffea arabica v. Anticholinergic
6. Catharanthus roseus vi. Antifungal
(A)
P-1-i
Q-2-ii
R-3-iii
S-4-iv
(B)
P-2-iii
Q-3-i
R-1-iv
S-5-v
(C)
P-3-iv
Q-4-ii
R-2-v
S-6-i
(D)
P-4-iii
Q-1-v
R-5-i
S-2-vi
Q.15 Which two of the following are the INCORRECT statements ?
P. All plants fix CO2 by the action of ribulose biphosphate carboxylase. The reaction occurs in the
bundle sheath of C4 plants
Q. All plants fix CO2 by the action of ribulose biphosphate carboxylase. The reaction occurs in the
mesophyll cells of C4 plants
R. Phosphoenol pyruvate + CO2 Oxaloacetate + Pi, catalyzed by the enzyme phosphoenol
pyruvate carbxylase occurs in the mesophyll cells of C4 plants
S. Phosphoenol pyruvate + CO2 Oxaloacetate + Pi, catalyzed by the enzyme phosphoenol
pyruvate dehydrogenase occurs in the mesophyll cells of C4 plants
(A) P,Q (B) Q,R (C) Q,S (D) P,R
Q.16 Select the CORRECT set comprising only the synthetic analogues of auxin and cytokinin
(A) IAA and Kinetin (B) 2, 4-D and Zeatin (C) IAA and Zeatin (D) 2, 4-D and Kinetin
Q.17 Which two of the following are the INCORRECT statements ?
P. In monocotyledonous stems with closed vascular bundle, secondary growth takes place without
any cambium
Q. In dicotyledonous stems hypodermis is collenchymatous
R. Mobilization of storage reserves takes place during post-germination of embryo
S. Osborne’s classification of seed storage proteins is based upon solubility in n-hexane
(A) P,R (B) Q,S (C) Q,R (D) P,S
Q.18 Identify two CORRECT characteristic features of (P) Autogamy and (Q) Allogamy from the
following statements
1. Plant species usually does not depend on external agents
2. Plant species usually depends on external agents
3. Plant species normally produces progeny that are healthier and better adapted in nature
4. Plant species normally produces weaker progeny in several generations
(A)
P-1,3
Q-2,4
(B)
P-2,4
Q-1,3
(C)
P-1,4
Q-2,3
(D)
P-2,3
Q-1,4
Q.19 Identify the correct matching by taking one item from each column
Column-I Column-II
P. Coenzyme 1. Holoenzyme + Apoenzyme
Q. Holoenzyme 2. Non-protein part in an active enzyme
R. Prosthetic group 3. Only the protein part in an active enzyme
S. Apoenzyme 4. Cofactor in an enzymatic reaction
5. Apoenzyme + Prosthetic group
6. Holoenzyme + inorganic phosphate
(A)
P-4
Q-5
R-2
S-3
(B)
P-4
Q-3
R-1
S-2
(C)
P-4
Q-3
R-5
S-6
(D)
P-4
Q-1
R-3
S-5
Q.20 Identify two CORRECT statements from the following which are related to the ion transportation
in the root system of plant
P. The proton pumps and H+
-pyrophosphatase appear to work in anti-parallel with the vacuolar
ATPase to create a proton gradient across the tonoplast
Q. Calcium is one of the important ion whose concentration is strongly regulated by the
concentration of apoplastic spaces in the millimolar level
R. Solute move through both apoplast and symplast, and xylem parenchyma cells participate in
xylem loading
S. The limitation of Nerst equation for relating the membrane potential to the distribution of ion at
equilibrium is that it cannot distinguish between active and passive transport
(A) P,S (B) Q,R (C) R,S (D) Q,S
END OF SECTION - J
K:MICROBIOLOGY
Q. 1 – Q. 10 carry one mark each.
Q.1 In 1976, Tonegawa’s experiment gave clue about gene rearrangement during differentiation of Bcells. The two different types of cells used in this experiment were
(A) HeLa cells and fibrosarcoma cells
(B) embryonic cells and fibroblasts
(C) adult myeloma cells and HeLa cells
(D) embryonic cells and adult myeloma cells
Q.2 To which one of the following groups, the antibiotics kanamycin, streptomycin and gentamicin
belong
(A) cephalosporins (B) macrolides (C) aminoglycosides (D) quinolones
Q.3 Shine Dalgarno’s sequence present in mRNA binds to
(A) 3
ᇱ
end of rRNA
(B) 5
ᇱ
end of rRNA
(C) 5
ᇱ
end of tRNA
(D) 3
ᇱ
end of tRNA
Q.4 Which one of the following transport mechanism is NOT employed by prokaryotes?
(A) Passive diffusion (B) Group translocation (C) Endocytosis (D) Active transport
Q.5 The most common indicator organism of faecal pollution in water is
(A) Clostridium botulinum (B) Bacillus subtilis (C) Escherichia coli (D) Clostridium tetani
Q.6 The theoretical maximum number of ATP molecules produced from aerobic oxidation of glucose
by eukaryotic cells is
(A) 38 (B) 24 (C)12 (D) 8
Q.7 Which one of the following DO NOT use water as an electron source during photosynthesis?
(A) Sulfate reducing bacteria
(B) Methanogenic bacteria
(C) Green and purple bacteria
(D) Nitrifying bacteria
Q.8
If the radius of a spherical coccus is 0.8 µm, the value of
volume
surface area in µm-1 will be
(A) 7.45 (B) 4.05 (C) 3.75 (D) 0.85
Q.9 The enzyme that catalyzes the reduction of nitrogen to ammonia is
(A) nitrogenase (B) nitrate reductase (C) nitrite reductase (D)deaminase
Q.10 Chemostat is a continuous culture system in which sterile medium is fed into the culture vessel at
the same rate as the spent medium is removed. If in a chemostat culture, the flow rate is 30 ml h-1
and volume of the medium inside the vessel is 100 ml, the dilution rate in h-1
is
(A) 3.33 (B) 1.50 (C) 0.75 (D) 0.30
Q. 11 - Q. 20 carry two marks each.
Q.11 In an experiment the structural genes lacZYAof lac operon were found to be constitutively
expressed. The following explanations were given for the constitutive expression
(P) absence of a functional repressor due to mutation in the repressor gene lacI
(Q) mutation in the operator that can no longer bind the repressor
(R) mutation in the lacAgene
Which of the following is CORRECT
(A) Only P (B) Only Q (C) Both P & Q (D) Only R
Q.12 Which one of the following is TRUE about siderophores in bacteria?
(A) Siderophores are secreted only when soluble iron is available in the medium
(B) Siderophores form complex with ferrous ions in the medium
(C) Siderophores are the only route of iron uptake
(D) Siderophores form complex with ferric ions in the medium
Q.13 In a population containing fast and slow growing bacteria, the slow growing bacteria can be
enriched by supplementing the medium with
(A) chloramphenicol (B) penicillin (C) penicillin & chloramphenicol (D) rifampin
Q.14 When the supply of tryptophan is plentiful, the tryptophan operon is repressed because the
(A) repressor protein-corepressor complex is bound at the operator
(B) repressor protein is synthesized in large quantity
(C) repressor-corepressor complex is not formed
(D) repressor becomes inactive and therefore has reduced specificity for the operator
Q.15 Match the scientists in Group I with their contributions in microbiology in Group II
Group I
P. Robert Hooke
Q. Paul Ehrlich
R. Antony van Leeuwenhoek
S. Sergei Winogradsky
Group II
I. Proved that microbes can cause diseases
II. First to observe cells
III. First to observe bacteria
IV. Used the first synthetic chemotherapeutic agent
V. Linked specific bacteria to biogeochemical
transformations
(A) P-I, Q-II, R-III, S-V (B) P-II, Q-IV, R-III, S-V
(C) P-II, Q-I, R-III, S-IV (D) P-V, Q-III, R-IV, S-II
Q.16 Match the infectious agents in Group I with the associated diseases in Group II
Group I
P. Bordetellapertusis
Q. Mycobacterium leprae
R. Haemophilusinfluenzae
S. Rubella
Group II
I. Mumps
II. Meningitis
III. Tuberculosis
IV. Whooping cough
V. Hansen’s disease
(A) P-IV, Q-V, R-II, S-I (B) P-V, Q-III, R-I, S-IV
(C) P-I, Q-III, R-V, S-IV (D) P-III, Q-II, R-V, S-I
Q.17 Match the microscopes in Group I with their working principles in Group II
Group I
P. Phase contrast
Q. Dark field
R. Bright field
S. Electron microscopy
Group II
I. Light reaches the specimen only from the sides
II. Uses fluorescent dyes
III. Difference in the refractive index of cells from their
surrounding medium
IV. Difference in contrast between specimen and its
surrounding medium
V. Uses electrons instead of photons as energy source
(A ) P-V, Q-II, R-III, S-V (B)P-III, Q-I, R-IV, S-V
(C) P-III, Q-II, R-V, S-I (D) P-II, Q-I, R-III, S-V
Q.18 In a phenol coefficient test for determining the efficacy of a disinfectant X, the maximum effective
dilution for X and phenol was found to be 1/450 and 1/90, respectively. Calculate the phenol
coefficient for X.
(A) 10.0 (B) 5.0 (C) 1.0 (D) 0.2
Q.19 How many electrons are accepted when sulfate acts as the terminal electron acceptor in bacteria
such as Desulfovibrio?
(A) 8 (B) 6 (C) 4 (D) 2
Q.20 A bacterial population increases from 103
cells to 109
cells in 10 h. Calculate the number of
generations per hour.
(A) 20 (B)10 (C)4 (D)2
END OF SECTION - K
L:Zoology
Q. 1 – Q. 10 carry one mark each.
Q.1 Which one of the following provides the strongest support for the theory of “descent with
modification”?
(A) Early embryonic forms of diverse organisms (examples: fishes, birds and mammals) appear
similar
(B) Ability of fishes and whales to swim
(C) Variation in flower colour in a given species
(D) Skin colour variation among individuals in a human population
Q.2 Which one of the following is an example of sympatric speciation?
(A) Origin of new species among wasps that pollinate figs
(B) Emergence of a new species among finches that migrated to an island and thus isolated from
their ancestors
(C) Evolution of birds’ and bats’ wings
(D) Speciation of squirrels separated by a wide river
Q.3 The primary difference between glycogen and cellulose is in the
(A)types of constituent monosaccharides
(B)number of monomers per molecule
(C)configuration of the monomers
(D)susceptibility to acid hydrolysis
Q.4 Control mechanisms operate at any of the several steps involved in gene expression. Which one of
the following is the key mode of regulation during the cell cycle?
(A) Transcription
(B) mRNA processing
(C) Activation of protein function resulting from protein-protein interaction
(D) mRNA export
Q.5 Testicular feminization syndrome is a genetic condition wherein an individual with a XY genotype
will have an external female-like phenotype. This is caused by
(A) Functional loss of androgen receptor
(B) Increased production of estrogen and its receptor
(C) Functional loss of Mullerian inhibiting hormone
(D) Functional loss of androgen receptor and Mullerian inhibiting hormone
Q.6 Which one of the following defects do you expect to see if you were able to specifically block
apoptosis in the developing limb bud of a frog embryo?
(A) The digits will remain connected through a web-like extension
(B) The bones will not form, and the limb would look like a paddle
(C) The limb would look normal but would be larger in size
(D) The anterior-posterior polarity of the limb will be lost
Q.7 The formation of antigen-antibody complex helps in disposing antigen through the following
pathways EXCEPT:
(A) Neutralizing the antigen by blocking its activity
(B) By directly hydrolyzing the antigen
(C) By promoting the precipitation of antigen
(D) By activating cell lysis pathway
Q.8 The term “ecological succession” refers to:
(A) A process wherein newer species populate a region that was devoid of flora and fauna
(B) A transition phase wherein one particular set of species is replaced by another set of species
(C) Changes in the community due to a disturbance in the habitat
(D) All the above
Q.9 Which one of the following options provide example for the term “habituation” in behavioral
ecology?
(A) A fish transferred to a fish tank startles initially for a hand clap, but not later
(B) Migratory birds from the temperate zone migrating towards the tropical part during the winters
(C) Adult kingfisher birds are more successful in catching fishes than their younger siblings
(D) Female lizard getting used to a new male lizard during the courtship period
Q.10 Among the following cell structure-function pairs, identify the correctly paired one
(A) Microvilli – engulfment of foreign bodies (B)Cytoskeleton – cell migration
(C) Peroxisomes – cellular respiration (D) Nucleolus – mRNA transcription
Q. 11 - Q. 20 carry two marks each.
Q.11 Which of the following most accurately states the goal of systematics?
(A) Classification scheme should reflect phylogenetic relationship
(B) All animals should be classified based on the relatedness at the early embryonic stage
(C) All animals should be grouped based on DNA sequence data
(D) Classification of animals should be based on morphological characters
Q.12 Among the following options, choose the one that is probably a cause of rapid diversification of
animal groups during the Cambrian explosion.
(A) Adaptation of organisms to live in the salty environment of ocean
(B) Emergence of coelom
(C) The movement of animals to land
(D) The accumulation of sufficient atmospheric oxygen to support the metabolism of actively
moving animals
Q.13 A newly discovered, recessively-inherited disease-susceptibility trait (DS) is observed only in
cotton plants with white flowers, although the flower colour (R) and DS are independently
inherited. In a breeding programme, one variety that is homozygous for the absence of DS, but
heterozygous for R was mated to another having white flowers but heterozygous for DS. What is
the probability that a given plant among the cross progeny will be susceptible to the disease?
(A) 25 % (B) 12.5 % (C) 75 % (D) 0 %
Q.14 In a new species of moth, the genes for body colour (black, B, is dominant over grey, b), wing size
(normal wing, W, is dominant over vestigial, w) and eye colour (red, R, is dominant over white, r)
are linked. In this species, only one cross-over event has been observed between any two
homologous chromosomes during meiosis. In a cross between BB; ww and bb; WW, 5 % of the
progeny were black with normal wings. In a separate cross between RR; WW and rr; ww, 15 % of
the progeny were red-eyed with vestigial wings. In a third cross between BB; rr and bb; RR, 10 %
of the progeny were black-coloured with red eyes. Which among the following is the correct order
of these three genetic loci?
(A) Body colour – Eye colour – Wing size (B) Eye colour – wing size – Body colour
(C) Wing size – Body colour – Eye colour (D) Eye colour – Body colour – Wing size
Q.15 In vertebrates, the variations in the structure and function of nephrons are directly linked to the
osmoregulatory requirements of the organisms depending on the habitats they live in. From the
options given below, identify the correct combination that truly represents the adaptation seen in
desert mammals:
i. Long loops of Henle
ii. Short loop of Henle
iii. Hyperosmotic urine
iv. Large volume of urine
v. Removal of nitrogen as uric acid
(A) Options i and iii (B) Options ii and iii (C) Options i and iv (D) Options i and v
Q.16 In Drosophila, mutations in homeotic genes result in which one of the following developmental
defects?
(A) The anterior portion of the embryo will not develop
(B) Several segments in the anterior region of the embryo will be lost
(C) Segmentation will be lost, and the embryo will have only one segment
(D) Segment-specific identities will be lost
Q.17 Retroviruses, like the influenza virus, escape the detection of pre-existing antibodies in the host by
generating surface antigen variants. They do so:
(A) By editing the surface antigen post-translationally
(B) Because RNA polymerase of these viruses display high mutation rate during RNA synthesis
(C) Because the surface antigens are attacked by the proteases present in the host cell
(D) Because DNA polymerase of the host mutates the viral genome in the infected cell
Q.18 The relative number of individuals in each age group is an important demographic factor for the
study of future growth trends, and this is normally depicted in the form of an age-structure pyramid.
Based on your understanding on population dynamics, match the following distribution properties
of age structure (Group 1) with the individual forecast given (Group 2):
Group 1
I). Uniform age distribution in the pyramid
II). Distribution skewed towards younger age groups
III). Distribution skewed towards older age groups
IV). Reduction in the number of males in the middle age group
Group 2
i). Emigration in the recent past and the possible increase in the older age groups in the near
future.
ii). Likely to be a stable population
iii). Possible unemployment in the near future
iv). Increased government expenditure on medical needs and social security related issues in the
near future
(A) I – iii; II – ii; III– i; IV – iv (B) I – ii; II – iii; III – iv; IV – i
(C) I – ii; II – i; III – iii; IV – iv (D) I – i; II – iii; III – ii; IV – iv
Q.19 Like any other trait, animal behavior also evolves by natural selection. Which one of the following
examples is NOT true with regard to the evolution of behavior by natural selection?
(A) The behavioral trait is determined only by genes
(B) The behavioral trait varies within the population of that species
(C) The reproductive success partly dependent upon the behavioral trait
(D) The behavioral trait is influenced by the genotype
Q.20 Among the following molecular process-biological effect pairs, identify the mismatched pair.
(A) Histone deacetylation – activation of gene expression
(B) Protein phosphorylation – signal transduction
(C) DNA methylation – sex-specific control of gene expression
(D)Proteolytic cleavage – activation of signaling by peptide hormones
END OF SECTION - L
M: FOOD TECHNOLOGY
Q. 1 – Q. 10 carry one mark each.
Q.1 Kawashiorkor disease is caused due to the deficiency of
(A) lysine (B) unsaturated fatty acids
(C) vitamin K (D) protein
Q.2 Which of the following statements is TRUE in case of oxidative rancidity of vegetable oils and
fats?
(A) It is caused by the reaction of saturated fatty acids and oxygen
(B) It involves polymerization of fatty acids
(C) It is caused by the reaction of unsaturated fatty acids with oxygen
(D) It is caused by oxidative enzymes
Q.3 The food borne disease, Q fever is caused by the organism
(A) Clostridium perfringens (B) Coxiella burnetti
(C) Bacillus cereus (D) Staphylococcus aureus
Q.4 The primary bacterial spoilage of poultry meat at low temperature, with characteristic sliminess at
outer surface, is caused by
(A) Pseudomonas spp. (B) Aspergillus spp.
(C) Bacillus spp. (D) Candida spp.
Q.5 The weight gain (in gram) per gram protein consumed is called
(A) Net Protein Ratio (NPR) (B) Biological Value (BV)
(C) Protein Efficiency Ratio (PER) (D) Chemical Score (CS)
Q.6 Which of the following carbohydrates is NOT classified as dietary fibre?
(A) Agar (B) Pectin
(C) Sodium alginate (D) Tapioca starch
Q.7 In the extruder barrel, the compression is achieved by back pressure created by the die and by
(A) increasing pitch and decreasing diameter of the screw
(B) using the tapered barrel with constant pitch
(C) increase in the clearance between barrel surface and screw
(D) opening of the die
Q.8 The brown colour of bread crust during baking is due to Maillard reaction between
(A) aldehyde groups of sugars and amino groups of proteins
(B) aldehyde groups of sugars and vitamins
(C) aldehyde groups of sugars and salt
(D) starch and yeast
Q.9 Blanching influences vegetable tissues in terms of
(A) enzymes production
(B) alteration of cytoplasmic membrane
(C) stabilization of cytoplasmic proteins
(D) stabilization of nuclear proteins
Q.10 When garlic is cut or processed, the crushed garlic odour is due to the formation of
(A) diacetyl (B) diallyl disulfide
(C) ethyl butyrate (D) benzaldehyde
Q. 11 - Q. 20 carry two marks each.
Q.11 Match the toxicants of plant foods in Group I with their main plant source given in Group II.
Group I Group II
P) Gossypol 1) Khesari Dahl (Lathyrus sativus)
Q) Vicine 2) Cotton seeds
R) Glucosinolates 3) Fava beans
S) BOAA (beta-N- Oxalyl Amino L-Alanine) 4) Rapeseeds
(A) P-2, Q-3, R-4, S-1 (B) P-2, Q-4, R-3, S-1
(C) P-3, Q-1, R-2, S-4 (D) P-4, Q-3, R-1, S-2
Q.12 Match the products in Group I with the enzymes used for their preparation given in Group II.
Group I Group II
P) Aspartame 1) Lipase
Q) Cocoa butter substitute 2) Glucose isomerase
R) High fructose corn syrup 3) Thermolysin
S) Lactose free milk 4) Invertase
5) Beta galactosidase
(A) P-2, Q-1, R-4, S-3 (B) P-3, Q-1, R-2, S-5
(C) P-1, Q-3, R-2, S-4 (D) P-1, Q-2, R-4, S-5
Q.13 Match the food items in Group I with the type of colloidal dispersion given in Group II.
Group I Group II
P) Mayonnaise 1) Sol
Q) Tomato ketchup 2) Emulsion
R) Cake 3) Gel
S) Curd 4) Solid foam
(A) P-4, Q-1, R-2, S-3 (B) P-3, Q-1, R-2, S-5
(C) P-2, Q-3, R-4, S-5 (D) P-2, Q-1, R-4, S-3
Q.14 [a] Assertion: In the presence of sucrose, the temperature and time for gelatinization of starch
increases.
[r] Reason: Sucrose, due to its hygroscopic nature, competes with starch for water needed for
gelatinization.
(A) Both [a] and [r] are true and [r] is the correct reason for [a]
(B) Both [a] and [r] are true but [r] is not the correct reason for [a]
(C) Both [a] and [r] are false
(D) [a] is true but [r] is false
Q.15 Thermal death of viable spores of Bacillus subtilis in a food sample follows a first order kinetics
with a specific death rate constant of 0.23 min-1
at 100°C. The time (in minutes) required to kill
99% of spores in the food sample at 100°C will be
(A) 10 (B) 20 (C) 23 (D) 60
Q.16 How much skim milk (in kg) containing 0.1% fat should be added to 500 kg of cream containing
50% fat to produce standardized cream containing 36% fat?
(A) 140 (B) 165 (C) 195 (D) 210
Q.17 Which of the following statements is NOT CORRECT in relation to muscle proteins ?
(A) Actin and myosin interact to form actomyosin which is responsible for muscle contraction
(B) Collagen contributes to the toughness of muscles due to its abundant presence
(C) Elastin, a constituent of ligaments, is tougher than collagen
(D) Actomyosin is not the main state of actin and myosin in post-mortem muscles
Q.18 A cold storage plant is used for storing 50 tonnes of apples in perforated plastic crates. During the
storage, apples are cooled down from 28°C to storage temperature of 2°C. (Specific heat of the
apple = 0.874 kCal kg-1
°C-1
). If the required cooling is attained in 16 hours, the refrigeration plant
capacity (in Tons) is
(A) 19 (B) 24 (C) 29 (D) 32
Q.19 An actively growing culture of Acetobacter aceti is added to the vigorously aerated fermented fruit
juice medium containing 10 g l-1
ethanol to produce vinegar. After some time, the ethanol
concentration in the medium is 0.8 g l-1
and acetic acid produced is 8.4 g l-1
. What is the conversion
efficiency of the process with respect to theoretical yield?
(A) 30 (B) 50 (C) 70 (D) 90
Q.20 An enzyme catalyzed reaction (following Michaelis-Menten kinetics) exhibits maximum reaction
velocity (Vm) of 75 nmol l
-1 min-1
. The enzyme at a substrate concentration of 1.0x10-4 M shows the
initial reaction velocity of 60 nmol l
-1 min-1
. The Km value of the enzyme in molar concentration
(M) is
(A) 2.5 x 10-5
(B) 5.0 x 10-5
(C) 2.5 x 10-4
(D) 5.0 x 10-4
END OF THE QUESTION PAPER
Q. 1 – Q. 5 carry one mark each.
Q.1 If 3 ≤ ܺ ≤ 5 and 8 ≤ ܻ ≤ 11 then which of the following options is TRUE?
(A)
ଷ
ହ
≤
≤
଼
ହ
(B)
ଷ
ଵଵ
≤
≤
ହ
଼
(C)
ଷ
ଵଵ
≤
≤
଼
ହ
(D)
ଷ
ହ
≤
≤
଼
ଵଵ
Q.2 The Headmaster ___________ to speak to you.
Which of the following options is incorrect to complete the above sentence?
(A) is wanting
(B) wants
(C) want
(D) was wanting
Q.3 Mahatama Gandhi was known for his humility as
(A) he played an important role in humiliating exit of British from India.
(B) he worked for humanitarian causes.
(C) he displayed modesty in his interactions.
(D) he was a fine human being.
Q.4 All engineering students should learn mechanics, mathematics and how to do computation.
I II III IV
Which of the above underlined parts of the sentence is not appropriate?
(A) I (B) II (C) III (D) IV
Q.5 Select the pair that best expresses a relationship similar to that expressed in the pair:
water: pipe::
(A) cart: road (B) electricity: wire
(C) sea: beach (D) music: instrument
Q. 6 to Q. 10 carry two marks each.
Q.6 Velocity of an object fired directly in upward direction is given by ܸ = 80 − 32 ݐ, where ݐ (time)
is in seconds. When will the velocity be between 32 m/sec and 64 m/sec?
(A) (1, 3/2) (B) (1/2, 1)
(C) (1/2, 3/2) (D) (1, 3
Q.7 In a factory, two machines M1 and M2 manufacture 60% and 40% of the autocomponents
respectively. Out of the total production, 2% of M1 and 3% of M2 are found to be defective. If a
randomly drawn autocomponent from the combined lot is found defective, what is the probability
that it was manufactured by M2?
(A) 0.35 (B) 0.45 (C) 0.5 (D) 0.4
Q.8 Following table gives data on tourists from different countries visiting India in the year 2011.
Country Number of
Tourists
USA 2000
England 3500
Germany 1200
Italy 1100
Japan 2400
Australia 2300
France 1000
Which two countries contributed to the one third of the total number of tourists who visited India in
2011?
(A) USA and Japan
(B) USA and Australia
(C) England and France
(D) Japan and Australia
Q.9 If |−2ܺ + 9| = 3 then the possible value of |−ܺ| − ܺ
ଶ would be:
(A) 30 (B) -30 (C) -42 (D) 42
Q.10 All professors are researchers
Some scientists are professors
Which of the given conclusions is logically valid and is inferred from the above arguments:
(A) All scientists are researchers
(B) All professors are scientists
(C) Some researchers are scientists
(D) No conclusion follows
H:CHEMISTRY (Compulsory)
Q. 1 – Q. 5 carry one mark each.
Q.1 N(CH3)3 and N(SiH3)3are congeners, but around N-atom the former has pyramidal geometry
whereas the latter is nearly planar. The bonding responsible for planarity of N(SiH3)3is
(A)pπpπ (B) pπdπ (C) dπdπ (D) δ
Q.2 The type of electronic transition responsible for the yellow colour of K2CrO4 is
(A)metal to ligand charge transfer
(B)ligand to metal charge transfer
(C)intra-ligand charge transfer
(D)d-d transition
Q.3 The given equation
൬
(ܪ∆)݀
݀ܶ ൰
ܥ∆ =
where ܪ, ܶ and ܥ are the enthalpy, temperature and heat capacity at constant pressure,
respectively, is called
(A) Clausius-Clapeyron equation (B) Hess’s law
(C) Kirchhoff’s equation (D) Trouton’s rule
Q. 4 - Q. 5 are questions with numerical answer.
Q.4 The number of 2-center2-electron bonds in anhydrous AlCl3 is ___________
Q.5 When dissolved in water, the number of H+
ions released from a molecule of H3BO3is _________
Q. 6 - Q. 15 carry two marks each.
Q.6 In NaCl crystal, the arrangement and coordination number of the ions are
(A)fcc and 6 (B) fcc and 4 (C) hcp and 6 (D) hcp and 4
Q.7 The solubility product (Ksp) of Ca3(PO4)2 is 1.3 ×10ିଷଶ
. In a 0.02 M solution of Ca(NO3)2, the
solubility of Ca3(PO4)2 (in units of M) is
(A) 6.5 ×10ିଷଵ (B)1.6 ×10ିଶ (C) 8.0 ×10ିଵ (D) 4.0 ×10ିଵସ
Q.8 Identify the CORRECT product in the following reaction:
(A) (B)
(C) (D)
Q.9 The major product obtained in the following reaction is
(A) (B)
(C) (D)
Q. 10- Q. 11 are questions with numerical answer.
Q.10 Iodine forms an anionic species Q in aqueous solution of iodide(I
). The number of lone pair(s) of
electrons on the central atom of Q is __________
Q.11 The rate of a chemical reaction is tripled when the temperature of the reaction is increased from 298
K to 308 K. The activation energy (in kcal mol1 K
1
, up to one decimal place) for the reaction
is(Given R = 1.987cal mol1 K
1
) _____________
Common Data Questions
Common Data for Questions 12 and 13:
Consider the following SN2 reaction of optically pure 1-chloro-3-ethylcyclopentane (X).
Q.12 The structure of Y in the above reaction is
(A) (B)
(C) (D)
Q.13 The absolute configuration of1-chloro-3-ethylcyclopentane (X) shown above is
(A) (1S,3R) (B) (1S,3S) (C) (1R,3R) (D)(1R,3S)
Linked Answer Questions
Statement for Linked Answer Questions 14 and 15:
The molar conductance at infinite dilution of sodium acetate, sodium sulfate and sulfuric acid solutions are
91.0 ×10ିସ
, 259.8×10ିସ
and 859.3×10ିସS m2 mol1
, respectively.
Q.14 The molar conductance at infinite dilution (in S m2 mol1
)of acetic acid is
(A)1028 ×10ିସ
(B) 820.4 ×10ିସ
(C)690.5 ×10ିସ
(D)390.8×10ିସ
Q.15 If the molar conductance of an acetic acid solution is15.2 ×10ିସSm2 mol1
,then the percentage (%)
dissociation of acetic acid in the solution will be
(A) 3.89 (B) 2.20 (C) 1.85 (D) 1.48
END OF SECTION - H
I:BIOCHEMISTRY
Q. 1 – Q. 10 carry one mark each.
Q.1 Which one of the following statements is TRUE when a cell is kept in a hypotonic
solution?
(A) Water moves out of the cell
(B) Size of the cell remains same
(C) No movement of water takes place
(D) Size of the cell increases
Q.2 Which one of the following amino acids has a higher propensity for cis peptide bond
formation?
(A) Histidine
(B) Cysteine
(C) Glycine
(D) Proline
Q.3 The length of an -helix composed of 36 amino acid residues is
(A) 10 Å
(B) 54 Å
(C) 27 Å
(D) 360 Å
Q.4 The order n for a given substrate concentration in an enzyme catalyzed reaction following
Michaelis-Menten kinetics, is
(A) n = 1 (B) n = 0 (C) n is not defined (D) 0 ≤ n ≤ 1
Q.5 Which one of the following amino acid residues is specifically recognised by chymotrypsin
during peptide bond cleavage?
(A) Phe
(B) Leu
(C) Val
(D) Asp
Q.6 The terminal electron acceptor during mitochondrial respiration is
(A) O2 (B) FAD+
(C) NAD+
(D) ATP
Q.7 During the biosynthesis of urea in the urea cycle, the two nitrogen atoms are derived from
(A) Two free ammonium groups
(B) Free ammonium group and aspartate
(C) Both nitrogen atoms are derived from arginine
(D) One nitrogen atom is derived from citrulline and one from glutamate.
Q.8 An enzyme has two binding sites for an inhibitor molecule. When the inhibitor binds to the
first site, the dissociation constant of the inhibitor for the second site increases, leading to
negative co-operativity. The Hill coefficient for such an inhibitor is
(A) equal to one (B) greater than one (C) less than one (D) less than zero
Q.9 An oligonucleotide was sequenced by the dideoxy method of Sanger and the following
autoradiogram was obtained
The sequence of the oligonucleotide is
(A) 3’-GTCCTGTACA-5’
(B) 5’-GTCCTGTACA-3’
(C) 5’-ACATGTCCTG-3’
(D) 3’-AATTTCCCGG-5’
Q.10 In different types of tissue transplantations, the rate of graft rejection in decreasing order is
(A) Isograft > Xenograft > Allograft
(B) Allograft > Isograft > Xenograft
(C) Xenograft > Autograft > Allograft
(D) Xenograft > Allograft > Isograft
Q. 11 - Q. 20 carry two marks each.
Q.11 You have prepared 1.0 liter of 0.5 M acetate buffer (pH=5.0). The dissociation constant of
acetic acid is 1.7×10-5 M. What would be the acetate ion concentration in the buffer?
(A) 0.1M
(B) 0.25 M
(C) 0.315 M
(D) 0.415 M
Q.12 The following figures show the plot of reaction rate versus substrate concentration (mM)
for an enzyme catalyzed reaction in the presence and absence of an inhibitor. Match the
possible reaction types with the plots.
(P) Competitive inhibition (Q) Substrate inhibition
(R) Michaelis-Menten (S) Non-competitive inhibition
(A) P – i, Q – iii, R – ii, S – iv
(B) P – iii, Q – ii, R – i, S – iv
(C) P – iii, Q – iv, R – i, S – ii
(D) P – iv, Q – ii, R – i, S – iii
Q.13 Arrange the following in the decreasing order of their permeability coefficients across a
lipid bilayer membrane.
(i) Urea
(ii) Glucose
(iii) H2O
(iv) Na+
(v) Tryptophan
(A) (i), (iii), (v), (ii), (iv) (B) (iii), (v), (ii), (iv), (i)
(C) (iii), (i), (v), (ii), (iv) (D) (i), (iii), (iv), (v), (ii)
Q.14 Arrange the following in the increasing order of amount of ATP generated by metabolism
of one molecule of the following compounds.
(i) Anaerobic catabolism of starch with 300 glucose units
(ii) Aerobic catabolism of glucose
(iii) Aerobic catabolism of acetate
(iv) Aerobic catabolism of palmitate
(A) (ii), (iv), (iii), (i) (B) (iii), (ii), (i), (iv)
(C) (iv), (ii), (i), (iii) (D) (iii), (ii), (iv), (i)
Q.15 Match the following enzymes with their regulatory mechanism
(a) Phosphofructokinase 1. Product inhibition
(b) Glycogen synthase 2. Control of enzyme synthesis
(c) β-galactosidase 3. Allosteric interaction
(d) Lactate dehydrogenase 4. Covalent modification
(A) (a)-3, (b)-2, (c)-1, (d)-4
(B) (a)-3, (b)-4, (c)-2, (d)-1
(C) (a)-4, (b)-3, (c)-1, (d)-4
(D) (a)-4, (b)-1, (c)-2, (d)-3
Q.16 A researcher wants to clone 3 DNA fragments of sizes 1.1 Mb, 0.097 Mb and 0.045 Mb.
The choice of the vectors for cloning each of the fragments are
(A) Cosmid, bacteriophage bacteriophage P1
(B) Yeast artificial chromosome, bacteriophage P1cosmid
(C) Bacterial artificial chromosome, bacteriophage , yeast artificial chromosome
(D) Only plasmids
Q.17 Which of the four restriction enzymes given below cut the following DNA sequence?
5’-CCGATATCTCGAGGGC-3’
(P) BamH1 (3’-CCTAG^G-5’)
(Q) XhoI (3’-GAGCT^C-5’)
(R) EcoRI (3’-CTTAA^G-5’)
(S) EcoRV (3’-CTA^TAG-5’)
(A) P & Q (B) P, R & S (C) Q & S (D) P & R
Q.18 You have expressed the following protein that has an isoelectric point of 6.0. The best
order of protein purification methodologies to obtain a pure protein is?
(A) Gel filtration chromatography, Anion exchange chromatography at pH=4.0,
Ammonium sulphate precipitation
(B) Cation exchange chromatography at pH=9.0, Ni-affinity chromatography, Gel filtration
chromatography
(C) Anion exchange chromatography at pH=8.0, Ni-affinity chromatography, Gel filtration
chromatography
(D) Ammonium sulphate precipitation, Anion exchange chromatography at pH=4.0, Niaffinity chromatography
Q.19 An enzyme of 40 kDa is added to a substrate solution in a molar ratio of 1:3. The
concentration of the enzyme in the mixture is 12 mg/ml. What would be the corresponding
substrate concentration?
(A) 0.4 mM (B) 0.12 mM (C) 0.9 mM (D) 0.3 mM
Q.20 A patient suffering from pneumonia and tuberculosis was found to have very low CD4+
T
cells. In all probability the PRIMARY causative infectious agent belongs to
(A) Klebsiella family
(B) Mycobacterium family
(C) Retrovirus family
(D) Streptococcus family
END OF SECTION - I
J:BOTANY
Q. 1 – Q. 10 carry one mark each.
Q.1 Bast fibres are present in
(A) Xylem (B) Phloem (C) Collenchyma (D) Parenchyma
Q.2 During cellular respiratory process, pyruvate must be oxidized to acetyl CoA and CO2 before it
enters the citric acid cycle. The corresponding simplified equation is
Pyruvate + NAD+
+ CoASH Acetyl-S-CoA + NADH + CO2
This oxidation reaction occurs in mitochondria and is carried out in presence of the enzyme
(A) Pyruvate kinase (B) Pyruvate dehydrogenase
(C) Pyruvate decarboxylase (D) Pyruvate carboxylase
Q.3 Which one of the following statements having the terms - gene, chromosome and genome is
CORRECT?
(A) The rice gene contains about 50,000 genomes located on 12 different chromosomes
(B) The rice genome contains about 50,000 genes located on 12 different chromosomes
(C) The rice chromosome contains about 50,000 genes located on 12 different genomes
(D) The rice genome contains about 50,000 chromosomes located on 12 different genes
Q.4 The aflatoxin found in post-harvested grains is injurious to health due to
(A) Aspergillus (B) Alternaria (C) Fusarium (D) Phytopthora
Q.5 Identify the event that exclusively occurs in meiotic cell division
(A) Chromatid formation (B) Spindle formation
(C) Synapsis (D) Chromosome movement to pole
Q.6 In the symbiotic nitrogen fixation process, Leghemoglobin present in the nodule helps in fixing
nitrogen in presence of the enzyme
(A) Nitrate synthetase (B) Nitrate synthase
(C) Glutathione synthetase (D) Nitrogenase
Q.7 Considering environment and ecosystem, identify the INCORRECT statement
(A) In detrital food chain, it is very difficult to measure the energy flow although the use of
radioactive tracers give some idea about the energy flow
(B) The change in species composition, community structure and function over time is ecological
succession
(C) The slower rise of environmental temperature may be attributed to the increase in pollution in
environment which reflects enough solar energy back to other spacer to slow down global
warming
(D) Photoperiodism has no relation with the environment and ecosystem, rather it is a biological
event taking place in every plant
Q.8 The two enzymes commonly used for isolation of protoplasts from plants are
(A) Cellulase and Lipase (B) Cellulase and Amylase
(C) Pectinase and Cellulase (D) Pectinase and Lipase
Q.9 For successful transfer of a foreign gene from the engineered Ti-plasmid to the plant genome, few
cis-acting DNA elements and trans-acting protein factors are very much essential. Select the
CORRECT combination from the following
(A) Opine catabolism genes, Left border sequence, Right border sequence
(B) Opine catabolism genes, Left border sequence, Virulence genes
(C) Hormone biosynthetic genes, Right border sequence, Virulence genes
(D) Left border sequence, Right border sequence, Virulence genes
Q.10 In naturally occurring cytoplasmic male sterility, the molecular determinant is located in
(A) Chloroplast (B) Endoplasmic reticulum
(C) Golgi complex (D) Mitochondria
Q. 11 - Q. 20 carry two marks each.
Q.11 Identify the floral formula with the family and the corresponding plant species
General Floral Formula Family Plant
P. P0 or 2-3, A3 or 3+3, G1 or (3) 1. Liliaceae i. Cocos nucifera
Q. P3+3, A3+3 or 3 / P3+3, G(3) 2. Cannaceae ii. Musa paradisiaca
R. P3+3, A3+3, G(3) 3. Graminae (Poaceae) iii. Maranta bicolor
S. P3+3, A6 or 5, G(3) 4. Palmae (Arecaceae) iv. Canna indica
5. Musaceae v. Allium cepa
6. Marantaceae vi. Oryza sativa
(A)
P-1-iv
Q-2-iii
R-6-i
S-4-ii
(B)
P-2-v
Q-4-vi
R-3-iii
S-5-iv
(C)
P-3-v
Q-6-iii
R-5-i
S-2-ii
(D)
P-3-vi
Q-4-i
R-1-v
S-5-ii
Q.12 A plant of genotype GGHH is crossed with another plant of the genotype gghh. If the F1 is test
crossed, what percentage (%) of the test cross progeny will have the genotype gghh when the two
genes are - (P) unlinked, (Q) completely linked with no crossing over, (R) 10 m.u. (genetic map
unit) apart, (S) 24 m.u. apart?
(A)
P-25
Q-25
R-25
S-25
(B)
P-25
Q-50
R-45
S-38
(C)
P-50
Q-50
R-90
S-76
(D)
P-25
Q-50
R-10
S-24
Q.13 Which two of the following are the CORRECT statements ?
P. Nondisjunction in the parental meiosis is not essential to produce diploid organisms
Q. Nondisjunction in the parental meiosis is essential to produce aneuploid organisms
R. Nondisjunction in the parental meiosis is essential to produce hexaploid organisms
S. Nondisjunction in the parental meiosis is essential to produce tetraploid organisms
(A) P,Q (B) Q,R (C) R,S (D) P,S
Q.14 Identify the correct matching by taking one item from each column
Column -I Column -II Column -III
P. Morphine 1. Cinchona officinalis i. Antineoplastic
Q. Nicotine 2. Hyoscyamus niger ii. Respiratory paralysis
R. Atropine 3. Papaver somniferum iii. Antibacterial
S. Vinblastine 4. Nicotiana tabacum iv. Narcotic analgesic
5. Coffea arabica v. Anticholinergic
6. Catharanthus roseus vi. Antifungal
(A)
P-1-i
Q-2-ii
R-3-iii
S-4-iv
(B)
P-2-iii
Q-3-i
R-1-iv
S-5-v
(C)
P-3-iv
Q-4-ii
R-2-v
S-6-i
(D)
P-4-iii
Q-1-v
R-5-i
S-2-vi
Q.15 Which two of the following are the INCORRECT statements ?
P. All plants fix CO2 by the action of ribulose biphosphate carboxylase. The reaction occurs in the
bundle sheath of C4 plants
Q. All plants fix CO2 by the action of ribulose biphosphate carboxylase. The reaction occurs in the
mesophyll cells of C4 plants
R. Phosphoenol pyruvate + CO2 Oxaloacetate + Pi, catalyzed by the enzyme phosphoenol
pyruvate carbxylase occurs in the mesophyll cells of C4 plants
S. Phosphoenol pyruvate + CO2 Oxaloacetate + Pi, catalyzed by the enzyme phosphoenol
pyruvate dehydrogenase occurs in the mesophyll cells of C4 plants
(A) P,Q (B) Q,R (C) Q,S (D) P,R
Q.16 Select the CORRECT set comprising only the synthetic analogues of auxin and cytokinin
(A) IAA and Kinetin (B) 2, 4-D and Zeatin (C) IAA and Zeatin (D) 2, 4-D and Kinetin
Q.17 Which two of the following are the INCORRECT statements ?
P. In monocotyledonous stems with closed vascular bundle, secondary growth takes place without
any cambium
Q. In dicotyledonous stems hypodermis is collenchymatous
R. Mobilization of storage reserves takes place during post-germination of embryo
S. Osborne’s classification of seed storage proteins is based upon solubility in n-hexane
(A) P,R (B) Q,S (C) Q,R (D) P,S
Q.18 Identify two CORRECT characteristic features of (P) Autogamy and (Q) Allogamy from the
following statements
1. Plant species usually does not depend on external agents
2. Plant species usually depends on external agents
3. Plant species normally produces progeny that are healthier and better adapted in nature
4. Plant species normally produces weaker progeny in several generations
(A)
P-1,3
Q-2,4
(B)
P-2,4
Q-1,3
(C)
P-1,4
Q-2,3
(D)
P-2,3
Q-1,4
Q.19 Identify the correct matching by taking one item from each column
Column-I Column-II
P. Coenzyme 1. Holoenzyme + Apoenzyme
Q. Holoenzyme 2. Non-protein part in an active enzyme
R. Prosthetic group 3. Only the protein part in an active enzyme
S. Apoenzyme 4. Cofactor in an enzymatic reaction
5. Apoenzyme + Prosthetic group
6. Holoenzyme + inorganic phosphate
(A)
P-4
Q-5
R-2
S-3
(B)
P-4
Q-3
R-1
S-2
(C)
P-4
Q-3
R-5
S-6
(D)
P-4
Q-1
R-3
S-5
Q.20 Identify two CORRECT statements from the following which are related to the ion transportation
in the root system of plant
P. The proton pumps and H+
-pyrophosphatase appear to work in anti-parallel with the vacuolar
ATPase to create a proton gradient across the tonoplast
Q. Calcium is one of the important ion whose concentration is strongly regulated by the
concentration of apoplastic spaces in the millimolar level
R. Solute move through both apoplast and symplast, and xylem parenchyma cells participate in
xylem loading
S. The limitation of Nerst equation for relating the membrane potential to the distribution of ion at
equilibrium is that it cannot distinguish between active and passive transport
(A) P,S (B) Q,R (C) R,S (D) Q,S
END OF SECTION - J
K:MICROBIOLOGY
Q. 1 – Q. 10 carry one mark each.
Q.1 In 1976, Tonegawa’s experiment gave clue about gene rearrangement during differentiation of Bcells. The two different types of cells used in this experiment were
(A) HeLa cells and fibrosarcoma cells
(B) embryonic cells and fibroblasts
(C) adult myeloma cells and HeLa cells
(D) embryonic cells and adult myeloma cells
Q.2 To which one of the following groups, the antibiotics kanamycin, streptomycin and gentamicin
belong
(A) cephalosporins (B) macrolides (C) aminoglycosides (D) quinolones
Q.3 Shine Dalgarno’s sequence present in mRNA binds to
(A) 3
ᇱ
end of rRNA
(B) 5
ᇱ
end of rRNA
(C) 5
ᇱ
end of tRNA
(D) 3
ᇱ
end of tRNA
Q.4 Which one of the following transport mechanism is NOT employed by prokaryotes?
(A) Passive diffusion (B) Group translocation (C) Endocytosis (D) Active transport
Q.5 The most common indicator organism of faecal pollution in water is
(A) Clostridium botulinum (B) Bacillus subtilis (C) Escherichia coli (D) Clostridium tetani
Q.6 The theoretical maximum number of ATP molecules produced from aerobic oxidation of glucose
by eukaryotic cells is
(A) 38 (B) 24 (C)12 (D) 8
Q.7 Which one of the following DO NOT use water as an electron source during photosynthesis?
(A) Sulfate reducing bacteria
(B) Methanogenic bacteria
(C) Green and purple bacteria
(D) Nitrifying bacteria
Q.8
If the radius of a spherical coccus is 0.8 µm, the value of
volume
surface area in µm-1 will be
(A) 7.45 (B) 4.05 (C) 3.75 (D) 0.85
Q.9 The enzyme that catalyzes the reduction of nitrogen to ammonia is
(A) nitrogenase (B) nitrate reductase (C) nitrite reductase (D)deaminase
Q.10 Chemostat is a continuous culture system in which sterile medium is fed into the culture vessel at
the same rate as the spent medium is removed. If in a chemostat culture, the flow rate is 30 ml h-1
and volume of the medium inside the vessel is 100 ml, the dilution rate in h-1
is
(A) 3.33 (B) 1.50 (C) 0.75 (D) 0.30
Q. 11 - Q. 20 carry two marks each.
Q.11 In an experiment the structural genes lacZYAof lac operon were found to be constitutively
expressed. The following explanations were given for the constitutive expression
(P) absence of a functional repressor due to mutation in the repressor gene lacI
(Q) mutation in the operator that can no longer bind the repressor
(R) mutation in the lacAgene
Which of the following is CORRECT
(A) Only P (B) Only Q (C) Both P & Q (D) Only R
Q.12 Which one of the following is TRUE about siderophores in bacteria?
(A) Siderophores are secreted only when soluble iron is available in the medium
(B) Siderophores form complex with ferrous ions in the medium
(C) Siderophores are the only route of iron uptake
(D) Siderophores form complex with ferric ions in the medium
Q.13 In a population containing fast and slow growing bacteria, the slow growing bacteria can be
enriched by supplementing the medium with
(A) chloramphenicol (B) penicillin (C) penicillin & chloramphenicol (D) rifampin
Q.14 When the supply of tryptophan is plentiful, the tryptophan operon is repressed because the
(A) repressor protein-corepressor complex is bound at the operator
(B) repressor protein is synthesized in large quantity
(C) repressor-corepressor complex is not formed
(D) repressor becomes inactive and therefore has reduced specificity for the operator
Q.15 Match the scientists in Group I with their contributions in microbiology in Group II
Group I
P. Robert Hooke
Q. Paul Ehrlich
R. Antony van Leeuwenhoek
S. Sergei Winogradsky
Group II
I. Proved that microbes can cause diseases
II. First to observe cells
III. First to observe bacteria
IV. Used the first synthetic chemotherapeutic agent
V. Linked specific bacteria to biogeochemical
transformations
(A) P-I, Q-II, R-III, S-V (B) P-II, Q-IV, R-III, S-V
(C) P-II, Q-I, R-III, S-IV (D) P-V, Q-III, R-IV, S-II
Q.16 Match the infectious agents in Group I with the associated diseases in Group II
Group I
P. Bordetellapertusis
Q. Mycobacterium leprae
R. Haemophilusinfluenzae
S. Rubella
Group II
I. Mumps
II. Meningitis
III. Tuberculosis
IV. Whooping cough
V. Hansen’s disease
(A) P-IV, Q-V, R-II, S-I (B) P-V, Q-III, R-I, S-IV
(C) P-I, Q-III, R-V, S-IV (D) P-III, Q-II, R-V, S-I
Q.17 Match the microscopes in Group I with their working principles in Group II
Group I
P. Phase contrast
Q. Dark field
R. Bright field
S. Electron microscopy
Group II
I. Light reaches the specimen only from the sides
II. Uses fluorescent dyes
III. Difference in the refractive index of cells from their
surrounding medium
IV. Difference in contrast between specimen and its
surrounding medium
V. Uses electrons instead of photons as energy source
(A ) P-V, Q-II, R-III, S-V (B)P-III, Q-I, R-IV, S-V
(C) P-III, Q-II, R-V, S-I (D) P-II, Q-I, R-III, S-V
Q.18 In a phenol coefficient test for determining the efficacy of a disinfectant X, the maximum effective
dilution for X and phenol was found to be 1/450 and 1/90, respectively. Calculate the phenol
coefficient for X.
(A) 10.0 (B) 5.0 (C) 1.0 (D) 0.2
Q.19 How many electrons are accepted when sulfate acts as the terminal electron acceptor in bacteria
such as Desulfovibrio?
(A) 8 (B) 6 (C) 4 (D) 2
Q.20 A bacterial population increases from 103
cells to 109
cells in 10 h. Calculate the number of
generations per hour.
(A) 20 (B)10 (C)4 (D)2
END OF SECTION - K
L:Zoology
Q. 1 – Q. 10 carry one mark each.
Q.1 Which one of the following provides the strongest support for the theory of “descent with
modification”?
(A) Early embryonic forms of diverse organisms (examples: fishes, birds and mammals) appear
similar
(B) Ability of fishes and whales to swim
(C) Variation in flower colour in a given species
(D) Skin colour variation among individuals in a human population
Q.2 Which one of the following is an example of sympatric speciation?
(A) Origin of new species among wasps that pollinate figs
(B) Emergence of a new species among finches that migrated to an island and thus isolated from
their ancestors
(C) Evolution of birds’ and bats’ wings
(D) Speciation of squirrels separated by a wide river
Q.3 The primary difference between glycogen and cellulose is in the
(A)types of constituent monosaccharides
(B)number of monomers per molecule
(C)configuration of the monomers
(D)susceptibility to acid hydrolysis
Q.4 Control mechanisms operate at any of the several steps involved in gene expression. Which one of
the following is the key mode of regulation during the cell cycle?
(A) Transcription
(B) mRNA processing
(C) Activation of protein function resulting from protein-protein interaction
(D) mRNA export
Q.5 Testicular feminization syndrome is a genetic condition wherein an individual with a XY genotype
will have an external female-like phenotype. This is caused by
(A) Functional loss of androgen receptor
(B) Increased production of estrogen and its receptor
(C) Functional loss of Mullerian inhibiting hormone
(D) Functional loss of androgen receptor and Mullerian inhibiting hormone
Q.6 Which one of the following defects do you expect to see if you were able to specifically block
apoptosis in the developing limb bud of a frog embryo?
(A) The digits will remain connected through a web-like extension
(B) The bones will not form, and the limb would look like a paddle
(C) The limb would look normal but would be larger in size
(D) The anterior-posterior polarity of the limb will be lost
Q.7 The formation of antigen-antibody complex helps in disposing antigen through the following
pathways EXCEPT:
(A) Neutralizing the antigen by blocking its activity
(B) By directly hydrolyzing the antigen
(C) By promoting the precipitation of antigen
(D) By activating cell lysis pathway
Q.8 The term “ecological succession” refers to:
(A) A process wherein newer species populate a region that was devoid of flora and fauna
(B) A transition phase wherein one particular set of species is replaced by another set of species
(C) Changes in the community due to a disturbance in the habitat
(D) All the above
Q.9 Which one of the following options provide example for the term “habituation” in behavioral
ecology?
(A) A fish transferred to a fish tank startles initially for a hand clap, but not later
(B) Migratory birds from the temperate zone migrating towards the tropical part during the winters
(C) Adult kingfisher birds are more successful in catching fishes than their younger siblings
(D) Female lizard getting used to a new male lizard during the courtship period
Q.10 Among the following cell structure-function pairs, identify the correctly paired one
(A) Microvilli – engulfment of foreign bodies (B)Cytoskeleton – cell migration
(C) Peroxisomes – cellular respiration (D) Nucleolus – mRNA transcription
Q. 11 - Q. 20 carry two marks each.
Q.11 Which of the following most accurately states the goal of systematics?
(A) Classification scheme should reflect phylogenetic relationship
(B) All animals should be classified based on the relatedness at the early embryonic stage
(C) All animals should be grouped based on DNA sequence data
(D) Classification of animals should be based on morphological characters
Q.12 Among the following options, choose the one that is probably a cause of rapid diversification of
animal groups during the Cambrian explosion.
(A) Adaptation of organisms to live in the salty environment of ocean
(B) Emergence of coelom
(C) The movement of animals to land
(D) The accumulation of sufficient atmospheric oxygen to support the metabolism of actively
moving animals
Q.13 A newly discovered, recessively-inherited disease-susceptibility trait (DS) is observed only in
cotton plants with white flowers, although the flower colour (R) and DS are independently
inherited. In a breeding programme, one variety that is homozygous for the absence of DS, but
heterozygous for R was mated to another having white flowers but heterozygous for DS. What is
the probability that a given plant among the cross progeny will be susceptible to the disease?
(A) 25 % (B) 12.5 % (C) 75 % (D) 0 %
Q.14 In a new species of moth, the genes for body colour (black, B, is dominant over grey, b), wing size
(normal wing, W, is dominant over vestigial, w) and eye colour (red, R, is dominant over white, r)
are linked. In this species, only one cross-over event has been observed between any two
homologous chromosomes during meiosis. In a cross between BB; ww and bb; WW, 5 % of the
progeny were black with normal wings. In a separate cross between RR; WW and rr; ww, 15 % of
the progeny were red-eyed with vestigial wings. In a third cross between BB; rr and bb; RR, 10 %
of the progeny were black-coloured with red eyes. Which among the following is the correct order
of these three genetic loci?
(A) Body colour – Eye colour – Wing size (B) Eye colour – wing size – Body colour
(C) Wing size – Body colour – Eye colour (D) Eye colour – Body colour – Wing size
Q.15 In vertebrates, the variations in the structure and function of nephrons are directly linked to the
osmoregulatory requirements of the organisms depending on the habitats they live in. From the
options given below, identify the correct combination that truly represents the adaptation seen in
desert mammals:
i. Long loops of Henle
ii. Short loop of Henle
iii. Hyperosmotic urine
iv. Large volume of urine
v. Removal of nitrogen as uric acid
(A) Options i and iii (B) Options ii and iii (C) Options i and iv (D) Options i and v
Q.16 In Drosophila, mutations in homeotic genes result in which one of the following developmental
defects?
(A) The anterior portion of the embryo will not develop
(B) Several segments in the anterior region of the embryo will be lost
(C) Segmentation will be lost, and the embryo will have only one segment
(D) Segment-specific identities will be lost
Q.17 Retroviruses, like the influenza virus, escape the detection of pre-existing antibodies in the host by
generating surface antigen variants. They do so:
(A) By editing the surface antigen post-translationally
(B) Because RNA polymerase of these viruses display high mutation rate during RNA synthesis
(C) Because the surface antigens are attacked by the proteases present in the host cell
(D) Because DNA polymerase of the host mutates the viral genome in the infected cell
Q.18 The relative number of individuals in each age group is an important demographic factor for the
study of future growth trends, and this is normally depicted in the form of an age-structure pyramid.
Based on your understanding on population dynamics, match the following distribution properties
of age structure (Group 1) with the individual forecast given (Group 2):
Group 1
I). Uniform age distribution in the pyramid
II). Distribution skewed towards younger age groups
III). Distribution skewed towards older age groups
IV). Reduction in the number of males in the middle age group
Group 2
i). Emigration in the recent past and the possible increase in the older age groups in the near
future.
ii). Likely to be a stable population
iii). Possible unemployment in the near future
iv). Increased government expenditure on medical needs and social security related issues in the
near future
(A) I – iii; II – ii; III– i; IV – iv (B) I – ii; II – iii; III – iv; IV – i
(C) I – ii; II – i; III – iii; IV – iv (D) I – i; II – iii; III – ii; IV – iv
Q.19 Like any other trait, animal behavior also evolves by natural selection. Which one of the following
examples is NOT true with regard to the evolution of behavior by natural selection?
(A) The behavioral trait is determined only by genes
(B) The behavioral trait varies within the population of that species
(C) The reproductive success partly dependent upon the behavioral trait
(D) The behavioral trait is influenced by the genotype
Q.20 Among the following molecular process-biological effect pairs, identify the mismatched pair.
(A) Histone deacetylation – activation of gene expression
(B) Protein phosphorylation – signal transduction
(C) DNA methylation – sex-specific control of gene expression
(D)Proteolytic cleavage – activation of signaling by peptide hormones
END OF SECTION - L
M: FOOD TECHNOLOGY
Q. 1 – Q. 10 carry one mark each.
Q.1 Kawashiorkor disease is caused due to the deficiency of
(A) lysine (B) unsaturated fatty acids
(C) vitamin K (D) protein
Q.2 Which of the following statements is TRUE in case of oxidative rancidity of vegetable oils and
fats?
(A) It is caused by the reaction of saturated fatty acids and oxygen
(B) It involves polymerization of fatty acids
(C) It is caused by the reaction of unsaturated fatty acids with oxygen
(D) It is caused by oxidative enzymes
Q.3 The food borne disease, Q fever is caused by the organism
(A) Clostridium perfringens (B) Coxiella burnetti
(C) Bacillus cereus (D) Staphylococcus aureus
Q.4 The primary bacterial spoilage of poultry meat at low temperature, with characteristic sliminess at
outer surface, is caused by
(A) Pseudomonas spp. (B) Aspergillus spp.
(C) Bacillus spp. (D) Candida spp.
Q.5 The weight gain (in gram) per gram protein consumed is called
(A) Net Protein Ratio (NPR) (B) Biological Value (BV)
(C) Protein Efficiency Ratio (PER) (D) Chemical Score (CS)
Q.6 Which of the following carbohydrates is NOT classified as dietary fibre?
(A) Agar (B) Pectin
(C) Sodium alginate (D) Tapioca starch
Q.7 In the extruder barrel, the compression is achieved by back pressure created by the die and by
(A) increasing pitch and decreasing diameter of the screw
(B) using the tapered barrel with constant pitch
(C) increase in the clearance between barrel surface and screw
(D) opening of the die
Q.8 The brown colour of bread crust during baking is due to Maillard reaction between
(A) aldehyde groups of sugars and amino groups of proteins
(B) aldehyde groups of sugars and vitamins
(C) aldehyde groups of sugars and salt
(D) starch and yeast
Q.9 Blanching influences vegetable tissues in terms of
(A) enzymes production
(B) alteration of cytoplasmic membrane
(C) stabilization of cytoplasmic proteins
(D) stabilization of nuclear proteins
Q.10 When garlic is cut or processed, the crushed garlic odour is due to the formation of
(A) diacetyl (B) diallyl disulfide
(C) ethyl butyrate (D) benzaldehyde
Q. 11 - Q. 20 carry two marks each.
Q.11 Match the toxicants of plant foods in Group I with their main plant source given in Group II.
Group I Group II
P) Gossypol 1) Khesari Dahl (Lathyrus sativus)
Q) Vicine 2) Cotton seeds
R) Glucosinolates 3) Fava beans
S) BOAA (beta-N- Oxalyl Amino L-Alanine) 4) Rapeseeds
(A) P-2, Q-3, R-4, S-1 (B) P-2, Q-4, R-3, S-1
(C) P-3, Q-1, R-2, S-4 (D) P-4, Q-3, R-1, S-2
Q.12 Match the products in Group I with the enzymes used for their preparation given in Group II.
Group I Group II
P) Aspartame 1) Lipase
Q) Cocoa butter substitute 2) Glucose isomerase
R) High fructose corn syrup 3) Thermolysin
S) Lactose free milk 4) Invertase
5) Beta galactosidase
(A) P-2, Q-1, R-4, S-3 (B) P-3, Q-1, R-2, S-5
(C) P-1, Q-3, R-2, S-4 (D) P-1, Q-2, R-4, S-5
Q.13 Match the food items in Group I with the type of colloidal dispersion given in Group II.
Group I Group II
P) Mayonnaise 1) Sol
Q) Tomato ketchup 2) Emulsion
R) Cake 3) Gel
S) Curd 4) Solid foam
(A) P-4, Q-1, R-2, S-3 (B) P-3, Q-1, R-2, S-5
(C) P-2, Q-3, R-4, S-5 (D) P-2, Q-1, R-4, S-3
Q.14 [a] Assertion: In the presence of sucrose, the temperature and time for gelatinization of starch
increases.
[r] Reason: Sucrose, due to its hygroscopic nature, competes with starch for water needed for
gelatinization.
(A) Both [a] and [r] are true and [r] is the correct reason for [a]
(B) Both [a] and [r] are true but [r] is not the correct reason for [a]
(C) Both [a] and [r] are false
(D) [a] is true but [r] is false
Q.15 Thermal death of viable spores of Bacillus subtilis in a food sample follows a first order kinetics
with a specific death rate constant of 0.23 min-1
at 100°C. The time (in minutes) required to kill
99% of spores in the food sample at 100°C will be
(A) 10 (B) 20 (C) 23 (D) 60
Q.16 How much skim milk (in kg) containing 0.1% fat should be added to 500 kg of cream containing
50% fat to produce standardized cream containing 36% fat?
(A) 140 (B) 165 (C) 195 (D) 210
Q.17 Which of the following statements is NOT CORRECT in relation to muscle proteins ?
(A) Actin and myosin interact to form actomyosin which is responsible for muscle contraction
(B) Collagen contributes to the toughness of muscles due to its abundant presence
(C) Elastin, a constituent of ligaments, is tougher than collagen
(D) Actomyosin is not the main state of actin and myosin in post-mortem muscles
Q.18 A cold storage plant is used for storing 50 tonnes of apples in perforated plastic crates. During the
storage, apples are cooled down from 28°C to storage temperature of 2°C. (Specific heat of the
apple = 0.874 kCal kg-1
°C-1
). If the required cooling is attained in 16 hours, the refrigeration plant
capacity (in Tons) is
(A) 19 (B) 24 (C) 29 (D) 32
Q.19 An actively growing culture of Acetobacter aceti is added to the vigorously aerated fermented fruit
juice medium containing 10 g l-1
ethanol to produce vinegar. After some time, the ethanol
concentration in the medium is 0.8 g l-1
and acetic acid produced is 8.4 g l-1
. What is the conversion
efficiency of the process with respect to theoretical yield?
(A) 30 (B) 50 (C) 70 (D) 90
Q.20 An enzyme catalyzed reaction (following Michaelis-Menten kinetics) exhibits maximum reaction
velocity (Vm) of 75 nmol l
-1 min-1
. The enzyme at a substrate concentration of 1.0x10-4 M shows the
initial reaction velocity of 60 nmol l
-1 min-1
. The Km value of the enzyme in molar concentration
(M) is
(A) 2.5 x 10-5
(B) 5.0 x 10-5
(C) 2.5 x 10-4
(D) 5.0 x 10-4
END OF THE QUESTION PAPER
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