1. Which of the following processes substitutes for sexual reproduction in flowering plants?
A. Parthenocarpy B. Apomixis
C. Parthenogenesis D. Semigamy
2. Match the common names of the plants listed in the left panel with their scientific names from the right panel and-choose the correct answer
Common name Scientific name
L. Blackgram I. Cajanu5 cajon L
M. Greengram II. Cicer arietinum l.
N. Chickpea III. Vigna mungo l.
O. Pigeonpea IV. Vigna radiata l.
V. Vigna unguiculata l.
A. M-III; 0-11 B. L-III; 0-11
C. L-III; 0-1 D. L-III; 0-1
3. The genotype that is present most often amongthe progeny of a cross AaBb X AaBb is
A. AaBb B. AAbb
C. AABB D. AABb
4. Robert Lefkowtiz and Brian Kobilka received Nobel Prize in chemistry in 2012 for studies on
A. Quasicrystals
B. Structure and function of the ribosome
C. Molecular basis of eukaryotic transcription
D. ,G..protein..coupled receptors
5. A set of approximately 25genes.encodes ,ap,athogenicity.mechanismthat enables Gram-negative bacteria to secrete and inject virulence proteins into the cytoplasm of eukaryotic host cell is termed as
A. ABC transporter system B. Type two secretion system
C. Type three secretion system D. Type four secretion system
6. Which among the following is not correctly matchedl
A. Day neutral plants -Plants that start flowering without any light stimulus
B. Short day plants -Plants that flower only when exposed to short periods of lights
C. Long day plants -Plants that flower after exposure to long days
D. Intermediate day plants -Plants that flower in response to either long or short
days

7. When enzyme binds to substrate, the activation energy level is
A. Lower B. Higher
C. Not changed D. Sub-optimal
8. All of the following statements regarding plant secondary metabolites are true except
A. They playa primary role in the normal growth and development of the organism
B. They can provide protection against predators and microbial pathogens
C. They can provide protection from radiation from the sun
D. They playa major'role in the adaption of plants to the changing environment
9. Gregor Mendel had discovered the basic mechanism of inheritance. Which of the following is not true with regard to the experimental techniques used by Mendel?
A. The choice of peas which are easy to grow and have a short life cycle
B. He choose simple, easily identified characteristics which occurred in just two forms
C. He made crosses between heterozygous parent plants to get F1
D. He analyzed his results mathematically
10. The antibiotic that is used in plant transformation experiments for inhibiting the growth of Agrobacterium is
A. Amphicillin B. Carbenicillin
C. Kanamycin D. Streptomycin
11. Fermentation: a word with many meanings for microbiologist and for a biochemist, it is
A. Growth dependent on substrate-level phosphorylation
B. Use of anorganic substrate as the electron donor and acceptor
. C. A biological process that occurs in the absence of oxygen Any involving mass culture of microorganisms under anaerobic conditions
3


B...

12. Trisomic series have been obtained in Datura stramonium which has 2n 24 chromosomes. How many chromosomes will be formed in a trisomic member of this species?
A. 12 B. 13
C. 24 D.25
13. Match the terms listed in Panel 1 with the description indicated in Panel 2 and choose the correct answer
Panel 1 Panel 2
L. Xerophyte I. Plants adapted to non-saline soil
M. Orophyte II. Plants that grow in places with scanty water
N. Mesophyte III. Plants adapted to saline soils
O. Halophyte IV. Plants inhabiting hills and mountains
V. Plants that grow under average conditions of temperature and moisture
A. L-II, 0-111 B. a-III
C. L-II, 0-111 D. 0-11
14. Which of the following statements regarding a catalyst is wrong?
A. A catalyst remains chemically unchanged at the end of the reaction
B. Only a small amount of catalyst is required
C. A catalyst initiates a chemical reaction
D. A catalyst is a substance which increases or decreases the rate of a reaction
15. In autochory, the plant itself carries out the dispersal of its propagules. Identify the mismatch with respect to self-dispersal in the following
A. Ballochory -transport by attachment of propagules to animals
B. Barochory -transport via gravity
C. Blastochory -dispersal via runners
D. Herpochory -transpdrt via active creeping
16. An organism has cytosine as 20% of its bases. The relative percentages of guanine, adenine and thymine in its bases would be
A. 30% and respectively B. 30% and respectively
C. 20% and respectively D. 20% and respectively




17. In protocooperation, two organisms get mutually benefited and the relationship is
A. Obligatory B. Not obligatory
C. Dependent on the organism D. Similar to commensalism
18. Phytoremediation refers to the use of pl,ants to remove, detoxify or immobilize environmental contaminants in soil, water or sediments. All the following statements regarding phytoremediation are true except
A. The plants can be easily monitored
B. The possibility of the recovery and re-use of valuable metal
C. It is potentially the least harmful method
D. The cost is very high as compared to other remedial methods
19. A researcher would like to prepare 1L of reaction buffer containing 10 mM Tris pH 7.0, 0.5 mM MgCI2 and 0.01% NaN3. He has the stocks of 2M Tris pH 7.0; 1M MgCh and NaN3. What volumes of the given stock solutions he has to mix in distilled water for preparing 1l of the above reaction buffer?
A. 100mlofTris; 50mlofMgCI2and10mlofNaN3
B. 50mlofTris;5 mlofMgCI2and1mlofNaN3
C. 50 ml of Tris; 50 ml of MgCI2 and 10 ml of NaN3
D. 5mlofTris;0.5mlofMgCI2and10mlofNaN3
20. The action spectrum of photosynthesis is a measure of the ability of plants to
A. Absorb all wavelengths of light B. Absorb light of different intensities
C. Use light to build up foods D. Use light of different wavelengths for synthesis
21. National Botanical Research Institute, a research Institute of CSIR, engaged in research in the field of classical taxonomy and modern biology is located at
A. Delhi B. Chandigarh
C. lucknow D. Mysore
22. The compound that is commonly used for producing artificial rain is
A. Silver nitrate B. Silver chloride
C. Silver iodide D. Potassium nitrate

B

23. Match the gene interactions given in Panel-A with inheritance pattern given in Panel B and choose the correct answer
Panel A PanelB
L. Complementary epistasis I. Dominant allele at one locus masks expression at second locus
M. Recessive epistasis II. At least one dominant allele from each of two genes needed for phenotype
N. Dominant epistasis III. One dominant allele from either of two genes needed for the phenotype
O. Duplicate genes IV. Homozygous recessive genotype at one locus masks expression at second locus
A. l-lIl; 0-1 B. l-lIl; 0-11
C. l-II; N-III; 0-1 D. 0-111
24. BordeteJla pertussis produces an exotoxin as a pathogenicity factor that causes increase in target cell cAMP level, decrease in ATP production and modifies the cellular functions. What could be the target of this exotoxin?
A. ADP ribosylation of the elongation factor 2
B. Calmodulin-activated adenylate cyclase
C. Mitogen-activated protein kinase
D. Zinc-dependent endopeptidase
25. When the pollen tube enters the ovules through the integuments, it is referred as
A. Pseudogamy B. Mesogamy
C. Chalazogamy D. Porogamy
PART-B
26. Which of the following statements about phytochromes is incorrect?
A. It is a heterodimer consisting of two different protein molecules conjugated to a light absorbing molecule
B. Plants make 5 phytochromes, Phy Phy Phy Phy D and Phy E
C. Phytochromes differ in their absorption spectra
D. Phytochromes exist in two interconvertible forms, PR and PFR
6
27. Which test can be undertaken to differentiate between Glucose and Fructose?
A. Benedict B. Seliwanoff
C. Molisch D. Osazone
28. Identify the pyrimidine base that contains an amino group at carbon 4 position
A. Adenine B. Uracil
C. Cytosine D. Thymine
29. Neurospora crassa is an extremely important research tool in genetics and biochemistry. This fungus belongs to the division
A. Ascomycota B. Zygomycota
C. Chitridiomycota D. Basidiomycota
30. All of the following statements are true about sickle-cell anemia except
A. It is an autosome-linked recessive trait
B. It is controlled by a single pair of alleles, HbA and HbS
C. There are two genotypes and heterozygous individuals show the diseased phenotype
D. It can be transmitted from parents to the offspring when both the partners are carriers for the gene
31. Vivipary occurs due to the deficiency of
A. Auxin B. Abscisic acid
C. Cytokinin D. Gibberellins
32. Which of the following is an ideal bioindicator?
A. Grass B. Moss
C. Sedge D. Sugarcane
33. Which among the following is a bactericidal antibiotic that binds to the small ribosomal subunit and inhibit protein synthesis in bacteria?
A. Bacitracin B. Penicillin
C. Streptomycin D. Vancomycin
7




34. Match the scientists names given in the Panel-A with their contributions given in the Panel-B and choose the correct answer
Panel-A Panel-B
L. H. J. Muller I. Non-disjunction proof that chromosomes contain genes
M. C. Bridges II. Demonstration of extranuclear inheritance in higher plants
N. B. McClintock III. Mutagenic effect of X-rays in Drosophila flies
O. T. H. Morgan IV. Discovery of mobile genetic elements
V. Discovery of sex-linkage
A. L-III; O-V B. L-III; 0-11
C. 0-111 D. 0-11
35. Centriole is a
A. Structure in the cytoplasm of a cell that plays an important role in cell replication
B. Structure on chromosomes that defines the length of chromosomal arms
C. Structure present in the vacuole of a cell
D. Structure present in the nucleolus of a cell
36. Assuming Hardy-Weinberg equilibrium, the genotype frequency of heterozygotes, if the frequency of the two alleles at the gene being studied are 0.7 and 0.3 will be
A. 0.09 B. 0.21
C. 0.42 D. 0.49
37. Which of the following is not a coal combustion product?
A. Fly ash B. Lime
C. Gypsum D. Boron
38. What is the function of the Golgi apparatus?
A. Site of protein synthesis
B. Stores additional DNA, to be used during apoptosis
C. Sorts and packages proteins made in the endoplasmic reticulum
D. Site of cellular toxin degradation
8
B-13

39. Identify the mismatch between the type of enzyme and its example
A. Oxidoreductase -Lactate dehydrogenase
B. Hydrolase -Glucose-6-phosphatase
C. Ligase -Glutamate synthetase
D. Transferase -Fumarate hydratase
40. The outer membrane of Gram-negative bacteria is known to harbor the endotoxins in the lipopolysaccharide complex. Which portion of the lPS is toxic?
A. Lipoprotein B. Lipid A
C. Peptidoglycan D. Oligosaccharide
41. The decrease in size and vigour in early generation of inbreeding is due to
A. loss of superior genes
B. Reduction in the frequency of superior genes
C. Expression of many lethal and sub-vital recessive alleles
D. loss of hybrid vigour
42. Which one of the following was used as a source of hydrogen by earliest photosynthesizers?
A. H2S B. H2O
C. S D. HCI
43. Which ofthe following is not composed of amino acids?
A. Glucagon B. Collagen
C. Amylase D. Cellulose
44. The eukaryotic RNA polymerase that transcribes transfer RNA is
A. RNA polymerase I B. RNA polymerase"
C. RNA polymerase III D. RNA polymerase IV
45. The association between mycorrhizae with the roots of plant species are considered
A. Commensalism B. Amensalism
C. Mutualistic D. Parasitic




46. The powerful inducers of proteinase inhibitors of plants that are involved in plant's defence response against insects are
A. Jasmonic acid B. Salicylic acid
C. Gibberellic acid D. Indole-3-acetic acid
47. Which of the following statements regarding the endosperm is false?
A. It is rich in nutrients, which it provides to the embryo
B. It develops from a triploid cell in 70% of the angiosperms
C. In gymnosperms, the endosperm grows from a spore and is haploid
D. The endosperm formed in gymnosperms is a diploid tissue
48. The cells of seaweed which actively absorb iodide ions from sea water would be expected to have large numbers of
A. Chloroplasts B. Mitochondria
C. Ribosomes D. Vacuoles
49. Where does glycolysis takes place?
A. Cytoplasm B. Central matrix of the mitochondria
C. Cristae ofthe mitochondria D. Nucleus
50. What is the net gain of ATP in anaerobic respiration?
A. 38
C. 40
51. A coenzyme is

B. 2
D. 4
A. An enzyme, which catalyzes a chemical reaction
B. A substance, which regulates enzyme activity
C. A substrate, made of amino acids
D. An alternative name for apoenzyme
52. All the following statements about Tobacco mosaic virus are true except
A. It is a single stranded RNA virus that infects plants, especially tobacco
B. It is the first virus to be chemically purified
C. It is primarily transmitted by mechanical means
D. It can infect human cells and cause health complications

53. The dominating model species for studies on plant developmental biology is
A. Secale cereale L. B. Gossypium hirsutum L.
C. Pisum sativum L. D. Arabidopsis thaliana L.
54. In photosynthesis, oxygen in glucose is derived from
A. Water B. Partly water and partly COz
C. Carbon dioxide D. Not known
55. Which among the following is the most appropriate equation for Nzfixation?
A. Nz+ 12H+ 12ATP +4Hz+12ADP 12Pj
B. Nz+ 10H+ 14ATP 2Hz+ 14ADP 14Pj
C. Nz+ 8H+ 14ATP 2Hz+ 14ADP 14Pj
D. Nz+ 8H+ 16ATP Hz 16ADP 16Pj
56. The removal of a ring of bark from the trunk of a tree eventually kills it because
A. Mineral salts cannot go up B. Assimilates cannot be translocated
C. Water cannot go up D. Intermediate stoppage of photosynthesis
57. When male, female and bisexual flowers are borne on the same plant, it is referred as
A. Polygamous B. Androecious
C. Gynoecious D. Monoecious
58. Which ofthe following statements is not true?
A. Phenols are more acidic compared to alcohols
B. Unlike aldehydes, ketones are not easily oxidized
C. Oxalic acid is a tricarboxylic acid
D. Benzoic acid is an aromatic acid
59. When two genotypes of genetic constitution AABBCc X AABBcc are mated the resulting progeny would be in the following proportion
A. X AABBCc; AABbcc B. Yz AABBCc; Yz AABBcc
C. Yz AaBBCc; Yz AABBcc D. Yz AABbCc; Yz AABBcc
11
60. Haploid production by wide hybridization followed by zygotic embryo culture was reported by Kasha and Kasha in 1970 in
A. Hordeum vulgare l. B. Oryza sativa l.
C. Solanum Iycopersicum l. D. Secale cereale L.
61. The organization of meristems differs in angiosperms, gymnosperms and pteridophytes. Identify the incorrect statement with respect to meristem orgaraizatiora
A. Pteridophytes possess a single meristematic cell
B. The vegetative meristem in gymnosperms lacks organization into distinct tunica and corpus
C. The gymnosperms do not have any vegetative meristem
D. The outermost layer of meristem cells in angiosperms divides anticlinally to generate the new cells
62. The conversion of pyruvate to acetyl CoA occurs in
A. Mitochondrial matrix B. Cytosol
C. Nucleus D. Thylakoid membrane
63. What is the correct order of steps in a mutagenesis screen?
A. Positional cloning, mutagenesis, identify mutants, verify genetic basis
B. Mutagenesis, positional cloning, identify mutants, verify genetic basis
C. Mutagenesis, identify mutants, verify genetic basis, positional cloning
D. Identify mutants, positional cloning, mutagenesis, verify genetic basis
64. Which of the following molecular markers requires Southern hybridization for its
identification?

A. Random Amplified Polymorphic DNA
B. Restriction Fragment Length Polymorphism
C. Inter Simple Sequence Repeats
D. Single Nucleotide Polymorphism
65. Cinnamomum camphora which is a source of camphor belongs to the family
A. Euphorbiaceae B. lauraceae
C. Santalaceae D. Malvaceae
12

66. Mosses and ferns, which belong to bryophytes and pteridophytes respectively, resemble the amphibians in the animal kingdom in what respect?
A. They have same pattern of nutrition
B. They have common sensory organ which help them to recognize their food
C. They have common sensory organ whiCh help them to recognize their enemy
D. They require an external source of water for male gametes to swim to female gametes for fertilization during sexual reproduction
67. In case of single crossovers between two-linked genes, the frequency of recombinant gametes is half the frequency of crossing-over because
A. A testcross between a homozygote and heterozygote produces Yz heterozygous and Yz homozygous progeny
B. The frequency of recombination is always 50%
C. Each crossover takes place between only two of the four chromatids of a homologous pair
D. Crossovers occur in about 50% of meiosis
68. Alginic acid that is widely used in food, textile and pharmaceutical industry as gelling or thickening agent, is a major constituent of
A. Phycocolloid and commercially extracted from giant brown algae
B. Phycobillins conjugated with heavy metals and commercially extracted from giant brown algae
C. Phycocolloid conjugated with heavy metals and commercially extracted from red algae
D. Phycocolloid and commercially extracted from green algae
69. Transpeptidation is a crucial step in the biosynthesis of bacterial cell wall. Antibiotics that inhibit the transpeptidation are routinely used for therapeutic purposes for bactericidal effects. What could be the substrate for one such antibiotic vancomycin?
A. Carboxypeptidase B. D-Ala-D-Ala.
C. Transpeptidase D. mDPA-l-AIa
70. Saffron, obtained from Crocus sativus l., is a spice that is used. in cooking as a seasoning and as a food colouring agent. Which part of Crocus sativus is used to make saffron?
A. leaves B. Stigma
C. Corm D. Petals
13
B

71. If an affected male has affected daughters and sons in about the same number as unaffected daughters and sons, the trait is likely to be an
A. X-linked dominant trait B. X-linked recessive trait
C. Autosomal recessive trait D. Autosomal dominant trait
72. Zoonotic describes a situation caused by a
A. Parasitic organism that is normally found in animals
B. Nematihelminth parasite in human beings
C. Parasitic animal infecting the plants
D. Parasitic organism that is normally found in humans
73. Which of the following plants is the smallest flowering plant on earth?
A. Lemma B. Rafflesia
C. Wolffia D. Sequoia
74. Taxol, an anticancer drug, isolated from the bark of Taxus brevijolia is classified as
A. Terpenoid B. Flavonoid
C. Polyketide D. Phenylpropanoid
75. The molecule that confers acidic nature on DNA is
A. Nitrogenous base B. Phosphate
C. Pentose sugar D. Hydrogen
76. Conjugation between and cells usually results

A. Two cells B. Two F cells
C. One cell and one F'cell D. Two Hfr cells
77. The output of glycolysis if one glucose molecule metabolizes
A. 2 Pyruvate, 2 ATP and 2 NADH
B. 4 Pyruvate, 2 ATP and 2 NADH
C. 4 Pyruvate, 4 ATP and 2 NADH
D. 2 Pyruvate, 4 ATP and 4 NADH


78. Photosynthesis takes place in the membranes of small sacs called
A. Thylakoids B. Grana
C. Stroma D. Chloroplast
79. Tetracylines are a family of antibiotics with a common four-ring structure towhich a variety of side chains are attached. Several of these tetracyclines are produced naturally by the members of this genus
A. Bacillus B. Cephalosporium
C. Nocardia D. Streptomyces
80. The hexaploid (2n =6x genome of wheat contains chromosomes derived from three different wild species which includes all of the following except
A. Triticum monococcum B. Triticum dicoccum
C. Triticum searsii D. Triticum tauschii
81. Which of the following amino acids is a precursor for niacin?
A. Phenylalanine B. Cysteine
C. Tryptophan D. Tyrosine
82. Presence of viable bacteria in the blood of the infected animal is referred to as
A. Pyogenic B. Bacteremia
C. Septicemia D. Systemic
83. If AABB is crossed to aabbl and the F1 is test-crossedl what percent of the testcross progeny will be AABB if the two genes are 16 map units apart?
A. 8% B. 16%
C. 32% D. 42%
84. Which of the following mating combinations between male and female parents is compatible when sporophytic self-incompatibility is operational in these parents?
A. SsXSS B. SSXSs
c. SsXSs D. SsXss
15

3-l3

85. Which of the following monosaccharides is n2! a carboxylic acid?
A. Muramic acid B. Glucose
C. Gluconate D. GJucuronate
86. One among the following is not a food preservative
A. Propionic acid B. Benzoic acid
C. Sodium diacetate D. Cinnamic acid
87. The diploid chromosome number of rice is 2n =24. How many chromosomes and DNA molecules will be found per cell when its meiocyte progresses to the Metaphase-l of meiosis?
A. 24 chromosomes and 48 DNA molecules
B. 48 chromosomes and 48 DNA molecules
C. 24 chromosomes and 24 DNA molecules
D. 12 chromosomes and 24 DNA molecules
88. Which of the following is the correct sequence for gene transfer procedures?
A. Cleaving-+ DNA DNA
B. Cleaving DNA
C. Cleaving Recombining-.DNA Cloning-+ Screening
D. Recombining-+ DNA Cleaving DNA
89. Blood poisoning· associated with persistence of pathogenic organisms or their toxins in the blood is often referred as
A. latrogenic B. Fulminating
C. Pyogenic D. Septicemia
90. Voges-Proskauer test is a procedure that detects the presence of
A. Butanediol B. lactate
C. Acetoin D. Pyruvate
91. What will be the probability to derive heads twice consecutively followed by a tail when a coin is tossed three times?
A. 1/8 B. 1/3
C. 2/3 D. 1/4
16
92. pi and psi angles for secondary structures of protein are also called
A. Torsion angle B. Trihedral angle
C. Dipeptide angle D. Quadrangle
93. If a radioactive isotope has a smaller proton/neutron ratio in its nucleus than the corresponding stable isotope, it would emit
A. Positron B. Neutron
C. a-particle D. Electron
94. Identify the mismatch in the following
A. Raffinose is a trisaccharide B. Glucose is an aldohexose
C. Fructose is a ketohexose D. Mannose is an aldopentose
95. Which of the following is not a characteristic feature of aromatic compounds?
A. Cyclic
B. Usually very unstable
C. Uses a p atomic orbital to form n-type bonds
D. High degree of unsaturation but resistant to addition reactions
96. Identify the mismatch from the following
A. Halophile -Salt B. Osmophile -Solute
C. Oligophile -Pressure D. Alkaliphile -pH
97. For microbial growth, Molasses is a very good source of
A. Oxygen B. Carbon
C. Phosphorus D. Heavy metals
98. An infection developed during a stay at a hospital or other clinical care facility is often referred to as
A. latent B. Nosocomial
C. Opportunistic D. Secondary
17

B-l3

99. Stickland reaction is
A. between two amino acids, in which one amino acid is oxidized and a second amino acid acts as an electron acceptor
B. between an amino acid and a keto-acid, in which the amino acid is oxidized and the keto-acid acts as an electron acceptor
C. between an amino acid and a keto-acid, in which the amino acid donates amino group and the keto-acid acts as an amino acceptor
D. between two keto-acids, in which one keto-acid is oxidized and a second keto-acid acts as an electron acceptor
100. If a mRNA sequence is CUC AAG UGC UAC, its complementary anticodon (on tRNA) will be
A. GTG TIC TCG TUG B. GAG UUC ACG AUG
C. GUG AAC UCG UAG D. CAC UUG AGC AUC