1. Consider the following statements:
1. In climacteric fruits, ethylene
stimulates its own production
2. Gibberellin present in a healthy stem
causes some of the new cells to
differentiate as phloem.
3. Loss of turgor in leaves stimulates the
production of abscises acid.
Which of the statements given above are
correct?
a. 1 and 2 only
b. 2 and 3 only
c. 1 and 3 only
d. 1,2 and 3
2. Which one of the following activities
cambium and elicits differentiation of
xylem?
a. Abscisic acid
b. Auxin
c. Cytokinin
d. Ethylene
3. Which one of the following is a synthetic
cytokinin?
a. Ethylene-diaminetetraacetic acid
b. Carboboenzoxyglylalanine
c. 6-furfurylaminopurine
d. 2,4-5 trichlorophenoxypropionic acid
4. Consider the following statements:
1. In the roots with endomycorrhizal
association, the fungal hyphae
penetrate the root cortex and pass
through the casparian strip to enter
vascular tissue.
2. The globin part of leghemoglobin in
nitrogen-fixing root nodules is encoded
by the bacterium whereas heme group
is synthesized by the host plant.
Which of the statements given above is/are
correct?
a. 1 only
b. 2 only
c. Both 1 and 2
d. Neither 1 nor 2
5. Which one of the following pairs is not
correctly matched?
a. Acidic amino acid : Aspartic acid
b. Basic amino acid : Lysine
c. Non-polar aromatic amino acid :
Tryptophan
d. Charged polar amino acid : Leucine
6. Consider the following statements:
1. Beta-oxidation takes place only in
glyoxisomes and not in cytosol.
2. When fatty acids undergo betaoxidation
to form acetyl coA, only
NADH is produced and not FADH2
Which of the statements given above is
/are correct?
a. 1 only
b. 2 only
c. Both 1 and 2
d. Neither 1 nor 2
7. Banana propagates vegetative through
a. Rhibosomes
b. Runners
c. Suckers
d. Tubers
8. With reference to the pioneering work
done on the plants listed below match List
I (Plants) with List II (Phenomena) and
select the correct answer using the codes
given below the lists:
List I (Plants)
A. Sinapis alba
B. Barely roots
C. Mougetia
D. Arabidopsis
List II (Phenomena)
1. Phototropism
2. Tanda effect
3. Control of gene expression by
phytochrome
4. Chloroplast movement
A B C D
a. 1 2 4 3
b. 1 4 2 3
c. 3 2 4 1
d. 3 4 2 1
9. Consider the following statements:
1. Bamboos produce new plants
vegetatively through their rhizomes.
2. Strawberries can reproduce asexually
by runners.
Which of the statements given above is/are
correct?
a. 1 only
b. 2 only
c. Both 1 and 2
d. Neither 1 nor 2
10. The intine of pollen is mad up of
a. Callose
b. Chitin
c. Cellulose
d. Sporopollenin
11. Which of the following is a characteristic
of sorosis?
a. Development from a spike or spadix
b. Muti-seeded fruit developed from a
monocarpellary pistil
c. Edible bracts
d. True fruit surrounded by fleshy edible
thalamus
12. The pollination between two flowers on
different plants is known as:
a. Xenogamy
b. Getionogamy
c. Cleistogamy
d. Dichogamy
13. Which part of the plant is involved in the
vegetative propagation of Dalbergia
sissoo?
a. Flower bud
b. Stem cutting
c. Intact root
d. Margin of intact leaf
14. With reference to litho sere (Xerosere)
type of plant succession, match List I
(Organism) with List II (Stage of
succession) and select the correct answer
using the codes given below the lists:
List I (Organism)
A. Aristida
B. Parmelia
C. Polytrichum
D. Rhizocarpon
List II (Stage of succession)
1. Crustose lichen stage
2. Foliose lichen stage
3. Moss stage
4. Herb stage
A B C D
a. 1 2 3 4
b. 1 3 2 4
c. 4 2 3 1
d. 4 3 2 1
15. Who of the following is associated with
the description of life-forms in plant
communities?
a. Tansley
b. Shelford
c. Slobodkin
d. Raunkiaer
16. Which one of the following hydrophytes
has its roots fixed in mud and leaves
floating on water?
a. Ceratophyllum
b. Najas
c. Trapa
d. Utricularia
17. Consider the following:
1. Insulin
2. Human Groth hormone
3. Interferons
4. Hepatitis-B surface antigen
Which of the above of/are generated from
genetically engineered microbes?
a. 1 only
b. 1,2 and 3 only
c. 3 and 4 only
d. 1,2,3 and 4
18. Match List I (Scientist) with List II
(Concept/Law/Principle) and select the
correct answer using the codes given
below the lists:
List I (Scientist)
A. Hardin
B. Liebig
C. Shelford
D. Whittaker
List II (Concept/Law/Principle)
1. Competitive exclusion principle
2. Law of tolerance
3. Low of Minimum
4. Concept of venegational continuum
A B C D
a. 1 2 3 4
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b. 1 3 2 4
c. 4 2 3 1
d. 4 3 2 1
19. To impart viral resistance, plants can be
genetically modified with which one of the
following genes?
a. Cry
b. Chitinase
c. Lectin
d. Viral coat protein
20. Which one of the following enzymes is
added in many detergents that help to
remove pertinacious stains from clothes?
a. Alcalase
b. Xylanase
c. Peroxidase
d. Catalase
21. Consider the following statement:
Biosensors are used in:
1. In vitro diagnostics
2. Detection of microbial contaminants in
food.
3. Monitoring pollutants in the biotic
component of environment.
Which of the statements given above is/are
correct?
a. 1 and 2 only
b. 2 only
c. 1 and 3 only
d. 1,2 and 3
22. Which one of the following is the method
of gene transfer based on the use of short
electrical impulses of high field strength?
a. Ultrasoniatioin
b. Electroporation
c. Microprojectile
d. Macro injection
23. Consider the following statements:
1. Plants developed through suspension
cultures generally exhibit genetic
variations.
2. Plants regenerated via organo-genesis
from callus cultures generally do not
exhibit genetic variations.
Which of the statements given above is/are
correct?
a. 1 only
b. 2 only
c. Both 1 and 2
d. Neither 1 nor 2
24. Shot gun technique is employed in:
a. Stitching of the gene
b. Isolation of the gene
c. Sequencing of DNA
d. Insertion of genomic clones into a
vector
25. Consider the following statements:
1. Polyhydroxybutyrates are produced by
bacterial fermentation.
2. Polyhydroxybutyrates can be used as
biodegradable plastics.
3. Transgenic trees are used in producing
polyhydroxybutyrates.
Which of the statements given above is/are
correct?
a. 1 only
b. 1 and 2 only
c. 2 and 3 only
d. 1,2 and 3
26. Cell cultures of Lithospermum
erythrorhizon are being used commercially
for preparing
a. Berberine
b. Plamitine
c. Shikonin
d. Plumagin
27. Which one of the following dyes is used in
testing the viability of protoplasts?
a. Evans blue
b. Trypan blue
c. Fluroscenia diacetate
d. Phenisofranin
28. Consider the following plants:
1. Darlingtonia
2. Dionaea
3. Sarracenia
Which of the above plants is/are
carnivorous?
a. 1 only
b. 1 and 2 only
c. 2 and 3 only
d. 1,2 and 3
29. Which one of the following is a nonsucculent
perennial xerophyte?
a. Argemone mexicana
b. Calotripis procera
c. Cassia tora
d. Solanum Xanthocarpum
4 of 12
30. Consider the following statements:
1. In Eichhornia, petioles become spongy
and swollen.
2. Ranunculus shows heterophylly.
3. Roots are entirely absent in Salvinia.
Which of the statements given above is/are
correct?
a. 1 only
b. 1 and 2 only
c. 2 and 3 only
d. 1,2 and 3
31. In oak, pollination is facilitated mainly by:
a. Birds
b. Droplets of rain
c. Insects
d. Wind
32. Consider the following statements:
1. All ferns are perennial and herbaceous.
2. Most ferns are homophonous, but
Marsileales and Salvineales are
heterosporous.
Which of the statements given above is/are
correct?
a. 1 only
b. 2 only
c. Both 1 and 2
d. Neither 1 nor 2
33. Red drop and Emerson effect have proved
the existence of:
a. Light and dark reactions is photosynthesis
b. Two distinct photo systems in photosynthesis
c. The supply of electrons from oxygen
evolving complex
d. Electron transport from water to
NADP+ across thylakoids
34. With reference to photosynthesis, what is
the CF0 – CF1 complex?
a. ATP synthetase
b. Ferredoxin – NADP reductase
c. Cytochrome b6/f complex
d. RuBP carboxylase
35. With reference to photosynthesis in
chloroplasts, consider the following
statements:
1. The reactions that break down water
and produce oxygen are located on the
lumen side of the thylakoid membrane,
in granum areas.
2. The molecules of ferredoxin-NADP
reeducate that generate NADPH are
located on the side of the membrane
facing stroma.
Which of the statements given above is/are
correct?
a. 1 only
b. 2 only
c. Both 1 and 2
d. Neither 1 nor 2
36. Which one of the following statements is
not correct?
a. The magnesium atom in chlorophyll a
carries the electrons involved in
photosynthesis
b. Cytochromes are intrinsic proteins of
chloroplast’s thylakiod membrane
c. Ferredoxin has a large positive redox
potential and tends to accept electrons
d. The phytol tails of chlorophyll a and
chlorophyll are hydrophobic
37. Consider the following statements:
1. The Pentose Phosphate Pathway
supplies Erythrose-4-Phosphate which
is the starting material the synthesis on
lignin.
2. The Pentose Phosphate pathway also
occurs in plastids.
3. NADPH is generated by the Pentose
phosphate pathway
Which of the statements given above are
correct?
a. 1 and 2 only
b. 1 and 3 only
c. 1 and 3 only
d. 1,2 and 3
38. Which among the following substances
have carbon skeletons made up of isoprene
units?
a. Alkaloids
b. Peptones
c. Steroids
d. Tepenes
39. Which one of the following statements is
not correct?
a. Roots produce gibberellins
b. The casparian strips in roots are
involved in controlling the types of
5 of 12
minerals that eneter the xylem water
starm
c. Lateral roots are initiated by cells
division in the endodermis
d. When Rhizobium converts N2 into
nitrogenous compounds that are
released into the host cells, energy is
supplied by sugars from the legume
roots cells
40. Ginger-Muller counter is used for
a. Estimating chlorophyll concentration
b. Measuring radioactivity
c. Identifying phytochrome pigments
d. Measuring the light absorption by
chlorophyll
41. Consider the following statements:
1. Initiator tRNA binds to the ribosome
small subunit even through no mRNA
is present.
2. During the elongation of protein chain,
the bond between methionine and its
tRNA in the P channel is broken by the
enzymes located in the small subunit
of ribosome.
Which of the statements given above is/are
correct?
a. 1 only
b. 2 only
c. Both 1 and 2
d. Neither 1 nor 2
42. With which of the following is Richmond-
Lang effect associated?
a. Stimulation of rosette plants to grow
normal
b. Inhibition of glycol sis by oxygen
c. Inhibition of photosynthesis by oxygen
d. Delay of senescence in detached leaves
43. Dense clumping of chromosomes on one
side with no chromatin material being seen
in the rest of the nucleus is termed as
a. Synapsis
b. Synizesis
c. Congress ion
d. Synaptomeres
44. The bulbosum technique used for the
production of haploid barley was first
given by
a. Kasha and Kao
b. Guha and Maheswari
c. Sears and Kostoff
d. Gupta and Srivastava
45. When genotype of haploid pollen and
diploid pistil determine incompatibility, it
is known as
a. Gametophytic self-incompatibility
b. Sporophytic self-incompatibility
c. Heteromorphic self-incompatibility
d. Homomorphic self-incompatibility
46. Consider the following statements:
Segmental allopolyploids are the
polyploids in which
1. The chromosomes are derived from
different genomes.
2. The chromosomes form multivalent
during meiosis.
3. The genome involved are not quite
different from one another
Which of the statements given above are
correct?
a. 1 and 2 only
b. 2 and 3 only
c. 1 and 3 only
d. 1,2 and 3
47. Double trisomes have a genomic
constitution of
a. 2n+2
b. 2n+1+1
c. 2n+1
d. 2n-1
48. The plasmid derived from E. coli plasmid
Col EI is:
a. YIP
b. pYAC
c. pBR-322
d. Ti-plasmid
49. Which one of the following is also known
as southern hybridization?
a. DNA-RNA hybridization
b. RNA-RNA hybridization
c. DNA-DNA hybridization
d. Protein –Protein hybridization
50. With reference to the designing of vectors
based on Ti and Ri plasmids, consider the
following statements:
1. they are disarmed by removing the
genes causing the disease
2. They carry sites for insertion of gene
of interest.
3. They carry selectable markers.
6 of 12
Which of the statements given above are
correct?
a. 1 and 2 only
b. 2 and 3 only
c. 1 and 3 only
d. 1,2 and 3
51. Match List I (Transgenic variety of crop)
with List II (Trait for which gene has been
incorporated) and select the correct answer
using the given below the lists:
List I
A. Seed link maixe
B. Rainbow papaya
C. Flavr Savr tomato
List II
1. Virus resistance
2. Herbicide resistance
3. Altered ripening
4. Insect resistance
A B C
a. 2 1 3
b. 2 3 1
c. 4 3 1
d. 4 1 3
52. Peptide bond is formed between
a. Two amino groups
b. Carboxyl group and ketone group
c. Amino group and carboxyl group
d. Two carboxyl groups
53. With reference to sex determination in
Melandrium album, consider the following
statements:
1. The Y chromosome is longer than the
X chromosome.
2. The Y chromosome and X
chromosome form a heteromorphic
bivalent at meiosis.
3. It is the presence of a single Y
chromosome rather than any number of
X chromosomes or autosomes that give
a male individual.
Which of the statements given above
are correct?
a. 1 and 2 only
b. 2 and 3 only
c. 1 and 3 only
d. 1,2 and 3
54. Which one of the following is the main
cause of the lower yield of F2 generation
than the F1 generation following
hybridization between two inbred lines of
maize?
a. Heterosis
b. Luxuriance
c. Inbreeding depression
d. Heterobeltiosis
55. Which one of the following is the correct
sequence of the appearance of intermediate
compounds in the pathway of
photorespiration?
a. Glyoxylate – glycine – glycolate –
serine
b. Glyoxylate – serine – glycolate –
glycine
c. Glycolate – glyoxylate – glycine –
serine
d. Glycolate – glyoxylate – serine –
glycine
56. The Coupling and Repulsion hypothesis
was put forth by:
a. W. Bateson
b. T. H. Morgan
c. L. W. Shap
d. John Belling
57. Hybrid vigour in artificial tobacco hybrids
was first reported by:
a. G.H. Shull
b. J. Kolereuter
c. C.B. Davenport
d. A. Collins
58. In the early atmosphere of earth, before the
origin of life, which one of the following
was not present?
a. Ammonia
b. Free hydrogen
c. Methane
d. Free oxygen
59. Which one of the following types of
inflorescence is found in carrot?
a. Catkin
b. Corymb
c. Spike
d. Umbel
60. Which of the following factors are
involved in the formation of new species?
a. Isolation and mutation
b. Competition and variation
c. Isolation and competition
7 of 12
d. Competition and mutation
61. Which one of the following is not correctly
matched?
a. Cutin: Consists of long chain fatty
acids and polyhydroxy derivatives of
these fatty acids
b. Pectin : Methylated polymer of
flacturonic acid
c. Lignin: Formed by condensation on
coniferyl alcohol
d. Callose: Glycosylated aliphatic acid
62. Which one of the following statements is
correct?
a. In the wood of dicots, ray tracheids are
absent
b. In the wood of gymnosperms, ray
parenchyma is absent
c. In most commercially important dicot
woods, fibers are absent
d. In the wood of all gymnosperms,
vessels are absent
63. Consider the following statements:
1. In insectivorous plants, trachoma’s
secrete digestive enzymes onto the
trapped insects.
2. Suberin gives the strength and waterproofing
properties to sclerenchyma.
3. Roots do not form a bark.
Which of the statements given above is/are
correct?
a. 1 only
b. 1 and 2
c. 2 and 3
d. 3 only
64. A concentric vascular bundle that has the
phloem surrounding the xylem is called
a. Closed
b. Amphivasal
c. Amphicribal
d. Radial
65. Consider the following statements
1. Stomata are completely absent in
hydrophytes.
2. In hydrophytes, vascular bundles
always have bundle sheaths.
Which of the statements given above is/are
correct?
a. 1 only
b. 2 only
c. Both 1 and 2
d. Neither 1 nor 2
66. What are Phragmoplasts?
a. The spindle microtubules formed
during cell division which are involved
in pulling the chromosomes to the ends
of dividing cell
b. A set of microtubules formed during
cell division to guide the dictyosome
vesicles to the site of cell wall
formation
c. Narrow holes in the cell walls of
adjacent cells through which
protoplasmic connections are
established
d. The plastids in ray parenchyma cells of
stems that store carbohydrates and
other nutrients during dormant periods
67. Which one of the following statements is
not correct?
a. In Capparis aphylla, stipules become
modified into spines
b. In Nerium, sunken stomata are present
on both upper and lower epidermis
and lower epidermis
c. In Asparagus roots store water
d. In the needle of Pinus roxburghii,
sclerenchymatous hypodermis is
present
68. Match List I (Plant) with List ii (Family)
and select the correct answer using the
codes given below the lists:
List I (Plant)
A. Cardamom
B. Fenugreek
C. Peppermint
D. Saffron
List II (family)
1. Iridaceae
2. Labiatae
3. Papilionaceae
4. Zingilbraceae
A B C D
a. 1 2 3 4
b. 1 3 2 4
c. 4 2 3 1
d. 4 3 2 1
69. By the presence of which of the following
can the family Brassicaceae be
immediately identified?
a. Inferior ovary and cruciform corolla
8 of 12
b. Tetradynamous stamens and axile
placentation
c. Teradynamous stamens and replum
d. Cruciform corolla and indehiscent fruit
70. Which one of the following families has
syngenesious anthers and inferior ovary?
a. Rubiaceae
b. Hydrocharitaceae
c. Malvaceae
d. Asteraceae
71. The family Onagraceae is marked out by
which type of embryo sac?
a. Peperomia
b. Plumbago
c. Polygonum
d. Oenothera
72. Match List I (Parasites) with List II (Type)
and select the correct answer using the
codes given below the lists:
List I (Parasites)
A. Cascuta sp.
B. Loranthus sp.
C. Orabanche sp.
D. Santalum sp.
List II (Type)
1. Total root parasite
2. Partial root parasite
3. Total stem parasite
4. Partial stem parasite
A B C D
a. 2 4 1 3
b. 2 1 4 3
c. 3 4 1 2
d. 3 1 4 2
73. Who discovered that the infective part of
virus is nucleic acids?
a. De Herelle
b. Hershey and Chase
c. Stanley
d. Lederberg and Tatum
74. Ginkgo resembles ferns in having
a. Non-motile sperms
b. Many-ciliated spermatozoids
c. No ventral canal cell in the archegonia
d. Reticulated leaves
75. Consider the following substances:
1. Cellulose
2. Glucan
3. Lignin
Which of the above statements is/are
found as a component/components of
fungal cell wall?
a. 1 and 2 only
b. 2 and 3 only
c. 3 only
d. 1,2 and 3
76. During zygotene stage of meiosis in a
spore mother cell, a proteinceous structure
which appears between homologous
chromosomes is known as
a. Histone complex
b. Lysosomal complex
c. Liposomal complex
d. Synaptonemal complex
77. Which one of the following is the carrier
of cytoplasm male sterility factors in crop
plants?
a. Nuclear DNA
b. RNA
c. Chloroplast DNA
d. Mitochondrial DNA
78. Which one of the following is not a
common feature of gametophyte selfincompatibility
systems?
a. Pollen is 3-celled
b. Pistil is wet
c. Rejection reaction occurs in the style
d. In vitro germination of pollen is easy
79. Match List I (Phenotypic segregation
ration) with List II (Type of gene action)
and select the correct answer using the
codes given below the lists:
List I
A. 9: 6: 1
B. 12: 3: 1
C. 9: 3: 4
D. 13: 3
List II
1. Duplicate gene action
2. Supplementary gene action
3. Inhibitory gene action
4. Masking gene action
5. Polymeric gene action
A B C D
a. 3 2 1 5
b. 5 2 1 3
c. 5 4 2 3
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d. 3 4 2 5
80. Consider the following statements:
1. The seeds of Shorea robusta remains
viable only for a week or so.
2. The seeds of Lens esculenta can
remain viable for several years
Which of the statements given above is/are
correct?
a. 1 only
b. 2 only
c. Both 1 and 2
d. Neither 1 nor 2
81. Nucellus in fertilized ovuled is known as:
a. Perisperm
b. Endothecium
c. Perithecium
d. Epistase
82. Which one of the following pairs is not
correctly matched?
a. Primary endosperm nucleus: Fusion
between sperm and polar nuclei
b. Helobial endosperm : Successive
nuclear division is followed by cells
wall formation
c. Storage proteins in endosperm :
Globulins and albumins
d. Endosperm cell well : Mannans and
xyloglucans
83. Most reactions of fatty acid synthesis
occur in
a. The cytosol, the mitochondrion, the
plastid and the E. R.
b. The mitocondrian, the plastid and the
ER.
c. The glyoxysome, the mitochondrion
and the E.R.
d. The plastid only
84. Match List 1 (Region) with List II
(Contribution to) and select the correct
answer using the codes given below the
lists:
List I (Region)
A. Apical cells of 2-celled embryo
B. Basal cells of 2-celled embryo
C. Torpedo stage embryo
D. Globular embryo
List II (Contribution to)
1. Emergence of cotyledons
2. Differentiation of root and shoot
3. Root apex and suspensor
4. Bulk of the embryo proper
A B C D
a. 1 2 3 4
b. 1 3 2 4
c. 4 2 3 1
d. 4 3 2 1
85. With reference to the “embryonal
suspensor’ which one of the following
statements is not correct?
a. It serves as a conduit for nutrients and
growth factors from the maternal tissue
to the embryo
b. It is highly polyploid and polytene
c. It persists even during post-embryonic
phase
d. It begins to senesce at torpedo stage of
embryo
86. With reference to the pollination stage in
angiosperms, consider the following
statements:
1. Pollen grains become dehydrated.
2. Antipodals degenerate.
Which of the statements given above is/are
correct?
a. 1 only
b. 2 only
c. Both 1 and 2
d. Neither 1 nor 2
87. Consider the following statements:
1. Cucurbits are monoecious plants.
2. In mango, neuter, male and female
flowers occur together.
Which of the statements given above is/are
correct?
a. 1 only
b. 2 only
c. Both 1 and 2
d. Neither 1 nor 2
88. Which one of the following statements is
not cottect?
a. In corn, the mature seed is
exalbuminous
b. In orchids, the embryo has no
cotyledons
c. In corn, the embryo contains young
leaves while in the seed
d. In peach, the fruit is drupe
10 of 12
89. Which one of the following disease is
caused by fluoride in drinking water?
a. Lung cancer
b. Liver disorder
c. Knock knee syndrome
d. Cardiomyopthy
90. With reference to the introduction of plant
disease into India from other countries,
consider the following pairs:
1. Bunchy top of banana : Ceylon (Sri
Lanka)
2. Potato tuber moth : Italy
3. Flag sumut of wheat : Fiji
Which of the above pairs is/are correctly
matched?
a. 1 and 2 only
b. 2 only
c. 1 and 3 only
d. 1,2 and 3
91. As per the international society of social
science, what is the size of the particles of
fine sand in the soil?
a. 0.001 mm to 0.002 mm
b. 0.002 mm to 0.02 mm
c. 0.02 mm to 0.20 mm
d. 0.20 mm to 2.00 mm
92. With which of the following is the name of
Louis Pasteur associated?
a. Explanation of the formation of simple
organic molecules in the early
atmosphere of earth.
b. The proposition of the composition of
gases in the early atmosphere of earth.
c. Disproving the theory of spontaneous
generation of organisms.
d. Proposition that the first photosyrhetic
organisms were cyanobacteria.
93. Assertion (A): Ferreoxin carries two
electrons at a time.Reason (R): The active site of ferredoxin
consists of two iron atoms bound to two
sulfur atoms.
a. Both A and R are individually true and
R is the correct explanation of A.
b. Both A and R are individually true but
R is not the correct explanation of A.
c. A is true but R is false
d. A is false but R is true
94. Assertion (A): Rice seeds germinate and
begin to grow under flooded conditions.Reason (R): Embryos of rice seeds carry
out facultative anaerobic respiration.
a. Both A and R are individually true and
R is the correct explanation of A.
b. Both A and R are individually true but
R is not the correct explanation of A.
c. A is true but R is false
d. A is false but R is true
95. Assertion (A): Citric acid has lesser
‘Respiratory Quotient’ in comparison to
lipids.Reason (R): Citric acid has relatively
more oxygen in •comparison to lipids.
a. Both A and R are individually true and
R is the correct explanation of A.
b. Both A and R are individually true but
R is not the correct explanation of A.
c. A is true but R is false
d. A is false but R is true
96. Assertion (A): If the oat seedlings are
exposed to unilateral illumination, the
stem bends towards the light.Reason (R): An auxin gradient is
established in the coleoptile by the
destruction of auxin in the lighted side and
extra synthesis of auxin in the darker side.
a. Both A and R are individually true and
R is the correct explanation of A.
b. Both A and R are individually true but
R is not the correct explanation of A.
c. A is true but R is false
d. A is false but R is true
97. Assertion (A): In pear fruit, the inner
tissue is the true fruit and the outer tissue
is the accessory fruit.Reason (R): In pear, the fruit develops
from inferior Ovary.
a. Both A and R are individually true and
R is the correct explanation of A.
b. Both A and R are individually true but
R is not the correct explanation of A.
c. A is true but R is false
d. A is false but R is true
98. Assertion (A): The rate of DNA
replication is much faster in E coil than in
eukaryotes.Reason (R): The length of Okazaki
fragments that result from DNA Polymer I
activity are much shorter in prokaryotes
than in eukaryotes
a. Both A and R are individually true and
R is the correct explanation of A.
b. Both A and R are individually true but
R is not the correct explanation of A.
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c. A is true but R is false
d. A is false but R is true
99. Assertion (A): Orchid seeds lack
endosperm.Reason (R): Double fertilization is absent
in orchids
a. Both A and R are individually true and
R is the correct explanation of A.
b. Both A and R are individually true but
R is not the correct explanation of A.
c. A is true but R is false
d. A is false but R is true
100. Assertion (A): Segemental allopolyploids
where all the chromosomes are
homologous.Reason (R): Segmental allopolyploids can
be identified by their meiotic behavior.
a. Both A and R are individually true and
R is the correct explanation of A.
b. Both A and R are individually true but
R is not the correct explanation of A.
c. A is true but R is false
d. A is false but R is true
101. Assertion (A): The expression of each
gene is independent of the other genes.Reason (R): Genes follow the law of
independent assortment as per Mendel’s
studies.
a. Both A and R are individually true and
R is the correct explanation of A.
b. Both A and R are individually true but
R is not the correct explanation of A.
c. A is true but R is false
d. A is false but R is true
102. Consider the following statements:
In vitro micro propagation has the
advantages of:
1. Range of variability
2. Year round availability
3. Small size of explants
4. Production of disease free prop gules.
Which of the statements given above are
correct?
a. 1,2 and 4 only
b. 2,3 and 4 only
c. 1 and 3 only
d. 1,2,3 and 4
103. Who of the following is associated with
the discovery of “Restriction endow -
nuclease”?
a. Hamilton Smith
b. H.G. Khorana
c. Marshall Nirenberg
d. S. B. Weiss
104. Consider the following diseases of plants:
1. Root knot of sugar-cane.
2. Root rot of wheat.
3. Wilt of cotton.
4. Angular leaf spot of cotton.
Which of these diseases is/are caused by
fungi?
a. 1 and 4 only
b. 2 only
c. 2 and 3
d. 1,3 and 4
105. Which one of the following is a disease
caused by zinc deficiency?
a. Die back of rice
b. Khaira disease of rice
c. Black heart of potato
d. Brown spot of rice
106. Which one of the following pairs is not
correctly matched?
a. Tikka disease of ground – nut
Cercospora personata
b. Blast of rice : Ephelis oryzae
c. Red rot of sugar-cane :
Collectotrichum falcatum
d. Early blight of potato : Alternaria
solani
107. Which one of the following is a copper
fungicide?
a. Bordeaux mixture
b. Carboxin
c. Chloropicrin
d. Mercuric chloride
108. Which one of the following pairs is not
correctly matched?
a. Flag smut of wheat : Ustilago nuda
tritici
b. Karnal bunt of wheat : Tilletia
barclayana
c. Brown rust of wheat : Puccinia
recondite
d. Powdery mildew of wheat : Erysiphe
graminis
109. Consider the following statements:
Biological control through antagonism
involves
1. Amensalism
2. Competition
3. Parasitism
4. Predation
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Which of the statements given above are
correct?
a. 1 and 2 only
b. 2,3 and 4 only
c. 1,3 and 4 only
d. 1,2,3 and 4
110. Which one of the following plants gives
palmarosa oil?
a. Cymbopogan martini
b. Dryopteris filix-mas
c. Ferula asafetida
d. Terminalia chebula
111. The family Ephedraceae, having ephedrine
producing plants, belongs to
a. Algae
b. Bryophytes
c. Gymnosperms
d. Angiosperms
112. Which one of the following algae is an
important source of mannitol?
a. Chlorella
b. Gelidium
c. Laminaria
d. Sargassum
113. Which one of the following plants is
considered as a potential petro-crop?
a. Euphorbia tirucalli
b. Jatropha curcas
c. Pongamia glabra
d. Ricinus communis
114. Ipomea batatas is propagated vegetatively
by using:
a. Bulbs
b. Corms
c. Tubers
d. Vine cuttings
115. Match List I (Forest type) with List II
(Plant association) and select the correct
answer using the codes given below the
lists:
List I
A. Alpine
B. Tropical thorn
C. Tropical dry deciduous
D. Tropical wet evergreen
List II
1. Dipterocarpus
2. Abies
3. Acacia
4. Tectona
A B C D
a. 1 3 4 2
b. 1 4 3 2
c. 2 3 4 1
d. 2 4 3 1
116. Consider the following plants:
1. Bruguiera
2. Eugenia
3. Kandelia
4. Schima
Which of the above are mangrove trees?
a. 1 and 2
b. 1 and 3 only
c. 2, and 4
d. 1,3 and 4
117. Which of the following chemicals is/are
used in seed viability testing?
a. Orcine and water
b. Uric acid & gibberellic acid
c. Tetrazolim chloride
d. Colchicin and water
118. Which one of the following is the purpose
of adding agar in the medium for tissues
culture?
a. Enrichment of macronutrients
b. Maintenance of pH
c. Solidification of the medium
d. Supply of energy for growth
119. Match List I (Wildlife sanctuary) with List
II (State) and select the correct answer
using the codes given below the lists:
List I
A. Bandipur wildlife sanctuary
B. Buxa wildlife sanctuary
C. Namdapha wildlife sanctuary
List II
1. Arunachal Pradesh
2. Karnataka
3. Madhya Pradesh
4. West Bengal
A B C
a. 2 3 1
b. 2 4 1
c. 1 3 2
d. 1 4 2
120. The callus is defined as:
a. Decaying cells
b. Differentiated cells
c. Sterile mass of cells
d. Undifferentiated mass of cells
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