India with 2.4% of world’s area has global biodiversity of
(A) 25%
(B) 8%
(C) 60%
(D) 2.5%
M.S. Swaminathan Research Foundation is located at
(A) Coimbatore
(B) Bangalore
(C) Hyderabad
(D) Chennai
Contribution of Agriculture to the gross domestic product (GDP) of India is
(A) 24.7%
(B) 8.0%
(C) 14.0%
(D) 35.0%
The term “Green Revolution” was coined by
(A) Norman E. Borlaug
(B) M.S. Swaminathan
(C) C. Subramanyam
(D) William Gaud
C4 plants differ from C3 plants in having different
(A) Photosynthetic pigments
(B) Initial acceptor of CO₂
(C) Assimilatory power
(D) End product
Which pigment is absent in chloroplast
(A) Anthocyanin
(B) Chlorophyll
(C) Carotene
(D) Xanthophyll
Apomixis means reproduction from
(A) An unfertilized egg
(B) Somatic cells
(C) Both (A and B)
(D) Fusion of gametes
Visible light forms part of electromagnetic spectrum between wavelengths of
(A) Violet and Red
(B) Ultraviolet and Infrared
(C) Ultraviolet and Red
(D) Violet and Infrared
Who discovered that during photosynthesis, O₂ comes from water and not from CO₂
(A) Van Niel
(B) Ruben and Kamen
(C) Warburg
(D) Blackman
Which of the following causes seed dormancy
(A) Ethylene
(B) Abscisic acid
(C) Gibberellins
(D) Starch
If pollen falls on stigma belonging to different flower borne on the same plant, it is
(A) Genetically self-pollination
(B) Cross pollination
(C) Ecological cross pollination
(D) None of the above
Maize is
(A) Cleistogamous
(B) Anemophilous
(C) Entomophilous
(D) Hygrophilous
Microscopic structure of flower that contains usually 8 nuclei is
(A) Pollen grain
(B) Pollen tube
(C) Embryo sac
(D) Embryo
The stress hormone is
(A) IAA
(B) GA₃
(C) ABA
(D) None of the above
Nitrogen is mainly absorbed by plants from soil in the form of
(A) N₂
(B) NH₄⁺
(C) NO₂⁻
(D) NO₃⁻
Chlorosis due to deficiency of Nitrogen in crop plants becomes visible first in
(A) Old leaves
(B) Young leaves
(C) Young leaves followed by old leaves
(D) Middle leaves
Growth hormone that results in apical dominance is
(A) Auxin
(B) Gibberellin
(C) Cytokinin
(D) Ethylene
A segment of DNA molecule that specifies a protein is
(A) Intron
(B) Gene
(C) Exon
(D) Codon
Who coined the term “gene”?
(A) W. Johannsen
(B) Gregor Mendel
(C) Robert Hooke
(D) Louis Pasteur
In DNA, the amount of adenine equals the amount of
(A) Cytosine
(B) Thymine
(C) Guanine
(D) Thymine + Cytosine
Part of gynoecium which receives pollen is
(A) Ovule
(B) Ovary
(C) Style
(D) Stigma
Ovule is attached to placenta by means of
(A) Pedicel
(B) Funicle
(C) Petiole
(D) Stalk
Mitochondria are not present in the living cells of
(A) Bacteria
(B) Fungi
(C) Algae
(D) Protozoa
Rough-surface endoplasmic reticulum in a living cell bears
(A) Microsomes
(B) Ribosomes
(C) Lysosomes
(D) Mitochondria
An individual having one less than the usual diploid number of chromosomes (2n-1) is
(A) Monotrichae
(B) Monotonic
(C) Monosomic
(D) Adiploid
Extremely long-term seed storage facility is possible by low-temperature freezing by
(A) Cryostorage
(B) Cold storage
(C) Deep-freeze storage
(D) Thermolabile storage
Soil containing a relatively equal mixture of sand and silt and little of clay is
(A) Loam
(B) Sand clay
(C) Silty clay
(D) Gravel clay
__________ amino acids found in proteins have the same general structure +H₃N–RCH–COO⁻ except
(A) Glycine
(B) Alanine
(C) Lysine
(D) Proline
DNA is usually double-stranded, the two chains being
(A) Parallel
(B) Antiparallel
(C) Semi-parallel
(D) Asymmetric
When cells prepare to divide, the chromosomes double and become visible in
(A) Metaphase
(B) Anaphase
(C) Interphase
(D) Prophase
The products of meiosis are single-celled haploid nuclei collectively termed as
(A) Spermatia
(B) Eggs
(C) Gametes
(D) Monokaryons
Structure of base pairs in DNA is
(A) A : T
(B) G : C
(C) Both (A and B)
(D) A : U
The first Director General of ICAR was
(A) M.S. Swaminathan
(B) B.P. Pal
(C) M.S. Randhawa
(D) A.B. Joshi
The system of Minimum Support Price (MSP) for cereal crops in India has been in operation since the year
(A) 1962
(B) 1965
(C) 1974
(D) 1991
The maximum growth rate of an organism occurs in
(A) Exponential phase
(B) Lag phase
(C) Stationary phase
(D) Senescence phase
A devastating outbreak of an infectious disease in population of plants is
(A) Epidemic
(B) Epibiotic
(C) Epiphytotic
(D) Endemic
Plants that have separate male and female individuals are termed as
(A) Monoecious
(B) Dioecious
(C) Autoecious
(D) Heteroecious
The first two dwarf Mexican wheat varieties imported in India were
(A) Kalyan Sona and Sonalika
(B) UP 301 and RR 21
(C) Lerma Rojo and Sonora 64
(D) None of the above
The test of significance of experimental results is generally based on minimum error degree of freedom of
(A) 5–10%
(B) 10–15%
(C) 15–20%
(D) 20–25%
Which one refers to wheat aphid?
(A) Myzus persicae
(B) Aphis gossypii
(C) Brevicoryne brassicae
(D) Macrosiphum granarium
The Great Bengal Famine mainly due to the brown spot of rice occurred in
(A) 1942
(B) 1885
(C) 1947
(D) 1965
The class of enzymes which catalyse the linking together of two molecules:
(A) Ligases
(B) Epimerases
(C) Isozymes
(D) Synthetase
A virus particle is
(A) Viroid
(B) Virion
(C) Prion
(D) Virusoid
One of the following is not an essential amino acid:
(A) Methionine
(B) Lysine
(C) Alanine
(D) Phenylalanine
The production of a complementary strand of RNA from a segment of DNA is
(A) Transduction
(B) Translation
(C) Transcription
(D) Transformation
Maltose is composed of
(A) Glucose and glucose
(B) Glucose and galactose
(C) Galactose and galactose
(D) Glucose and fructose
The most widely used egg parasitoid in pest management is
(A) Telenomus
(B) Tetrastichus
(C) Trichogramma
(D) Trichospilus
Codons which code for an amino acid are
(A) Non-sense codons
(B) Sense codons
(C) Anticodons
(D) Introns
‘Erineum’ patches are the characteristic symptom of damage caused by
(A) Mites
(B) White flies
(C) Aphids
(D) Leafhoppers
A cell lacking a membrane-bound nucleus is
(A) Prokaryotic cell
(B) Eukaryotic cell
(C) Protozoan cell
(D) Amoeboid cell
During 1965–66, before Green Revolution, India produced wheat to the extent of
(A) 71 million tonnes
(B) 17 million tonnes
(C) 10 million tonnes
(D) 110 million tonnes
The vitamin that is not found in plants
(A) Niacin (B6)
(B) Thiamine (B1)
(C) Vitamin K
(D) Vitamin B12
Non-symbiotic nitrogen fixation in plants is mediated by
(A) Rhizobium
(B) Azotobacter
(C) Bacillus
(D) Mycorrhiza
The first All India ICAR-sponsored Coordinated Crop Improvement Research Project was on
(A) Wheat
(B) Maize
(C) Rice
(D) Oilseeds
Out of the total arable land area in India, rainfed area comes to about
(A) 70%
(B) 30%
(C) 50%
(D) 20%
The pyridoxine nucleotides are co-enzymes for the enzymes
(A) Carboxylases
(B) Esterases
(C) DNA polymerases
(D) Dehydrogenases
The number of known nonsense codons concerning protein synthesis are
(A) Three
(B) Twenty
(C) Two
(D) Six
The fungus Ustilaginoidea virens causes
(A) False smut of rice
(B) Loose smut of wheat
(C) Whip smut of sugarcane
(D) Flag smut of wheat
Mungbean Yellow Mosaic Virus causing soybean’s yellow mosaic disease is a
(A) Badna virus
(B) Geminivirus
(C) Tenuivirus
(D) None of the above
The generation of seeds obtained through multiplication of nuclear seed is
(A) Foundation seed
(B) Registered seed
(C) Breeder seed
(D) Certified seed
One of the following is a cross-pollination crop
(A) Rice
(B) Wheat
(C) Groundnut
(D) Sugarcane
The Secretary of Department of Agricultural Research and Education (DARE) is usually the
(A) DG of ICAR, New Delhi
(B) DG of CSIR, New Delhi
(C) Director IARI, New Delhi
(D) Agricultural Production Commissioner
Who is considered as father of Plant Pathology in India?
(A) B.B. Mundkur
(B) K.C. Mehta
(C) E.J. Butler
(D) J.E. Dastur
Sunflower necrosis disease, as reported recently in Andhra Pradesh and Karnataka, is caused by
(A) Fungus
(B) Bacterium
(C) Virus
(D) Boron deficiency
The causal organism of stripe rust of wheat is
(A) Puccinia glumarum
(B) Puccinia recondita
(C) Puccinia graminis tritici
(D) Ustilago segetum tritici
Starch is hydrolyzed by
(A) Catalase
(B) Hexokinase
(C) Peroxidase
(D) Amylase
Nitrogen fixation is:
(A) Conversion of NH₃ to NO₂
(B) Conversion of NO₃ to N₂
(C) Reduction of N₂ to NH₄
(D) Conversion of NO₂ to NO₃
Zinc is used up by the plants as:
(A) Zn
(B) Zn(NO₃)₂
(C) ZnSO₄
(D) Zn²⁺
Minimum isolation distance for certified seed production of groundnuts is
(A) 100 meters
(B) 50 meters
(C) 400 meters
(D) 3 meters
Standard deviation (S) is expressed as
(A) S = …………
(B) S = √2
(C) S = √3
(D) None of the above
Muriate of potash contains
(A) 48–50% K₂O
(B) 60% K₂O
(C) 12–30% K₂O
(D) 46% K₂O
Tungro disease of rice is caused by a virus transmitted by
(A) Green leafhopper
(B) Brown planthopper
(C) Gall midge
(D) Whitefly
India, with 2.4% of the world’s land, supports world population to the extent of
(A) 2.6%
(B) 16%
(C) 30%
(D) 42%
Minimum isolation distance for certified seed production of wheat is
(A) 400 meters
(B) 150 meters
(C) 10 meters
(D) 100 meters
An effective seed treatment fungicide for control of loose smut of wheat is
(A) Thiram
(B) Captan
(C) Mancozeb
(D) Carboxin
The best method for detection of presence of seed-borne virus is
(A) Direct seed inspection
(B) Washing seed test
(C) Blotter test
(D) Indicator plant test
The product of two single cross hybrids is
(A) Monohybrid
(B) Dihybrid
(C) Double cross hybrid
(D) Trihybrid
The identification mark of certified seed is
(A) Purple tag
(B) White tag
(C) Red tag
(D) Blue tag
An otherwise diploid organism with an extra pair of chromosomes (2n+2) is
(A) Tetrasomic
(B) Trisomic
(C) Monosomic
(D) Disomic
The increased vigor or function over the parents resulting from crossing is
(A) Heterosis
(B) Dominance
(C) Epistasis
(D) None of the above
A set of chromosomes as contained within a gamete is
(A) Germplasm
(B) Genotype
(C) Genome
(D) Gene
A circular extrachromosomal body within a bacterial cell
(A) Plasmid
(B) Nucleoid
(C) Genome
(D) Nucleoli
A plant cell devoid of cell wall
(A) Phytoplasma
(B) Protoplast
(C) Sporoplast
(D) None of the above
Symbol used to designate the original selfed plant
(A) S₁
(B) S₀
(C) S₀
(D) S⁺
The rules for experimental proof of pathogenicity of a microorganism were given by
(A) Louis Pasteur
(B) Robert Koch
(C) Anton de Bary
(D) Edward Jenner
The scientific name of a bacterium, Bacillus thuringiensis, owes its origin to Thuringia region in
(A) France
(B) Germany
(C) England
(D) USA
Cotton rust disease is caused by
(A) Fungus
(B) Algae
(C) Deficiency of potassium
(D) Other than above
Which of the following fungal genera is not the cause of downy mildew disease in plants
(A) Peronospora
(B) Plasmopara
(C) Sphaerotheca
(D) Sclerospora
The cell resulting from the fusion of gametes
(A) Seed
(B) Embryo
(C) Zygote
(D) Endosperm
A cross of a hybrid to a genetically homozygous recessive parent
(A) Test cross
(B) Back cross
(C) Top cross
(D) Double cross
The inflorescence of rice plant is
(A) Cymose
(B) Panicle
(C) Capitulum
(D) Umbel
The potential of an undifferentiated plant cell (protoplast) to develop into a plant is referred to as
(A) Alternation of generation
(B) Totipotency
(C) Resurgence
(D) Regeneration
Lines that are genetically similar except for one gene
(A) Pure lines
(B) Homozygous lines
(C) Multilines
(D) Isogenic lines
Quality of water required by wet paddy crop to produce 1 kg of rice is about
(A) 2000 liters
(B) 5000 liters
(C) 1000 liters
(D) 2500 liters
Common bread wheat is
(A) Triticum monococcum
(B) Triticum dicoccum
(C) Triticum aestivum
(D) Triticum durum
Plants that have separate male and female individuals (plants) are termed as
(A) Monoecious
(B) Dioecious
(C) Autoecious
(D) Central America
The rice crop species Oryza glaberrima is most predominantly cultivated in
(A) Australia
(B) Middle East
(C) Africa
(D) Central America
First irrigation in Mexican dwarf wheat crop is recommended between
(A) 7–15 days after sowing
(B) 15–20 days after sowing
(C) 21–25 days after sowing
(D) 30 days after sowing
The amount of nitrogen fixed by blue-green algae (BGA) in wet paddy fields ranges from
(A) 15 to 45 kg ha⁻¹
(B) 10 to 15 kg ha⁻¹
(C) 40 to 50 kg ha⁻¹
(D) 5 to 10 kg ha⁻¹
JL-24 is a variety of
(A) Cotton
(B) Rice
(C) Groundnut
(D) Soybean
(A) Auxin
(B) Coleoptile
(C) Essential fatty acids
(D) Essential amino acids
102. Maximum permissible limit of aflatoxins in food products or oil cakes is in the range of
(A) 5–30 ppb
(B) 5–30 ppm
(C) 100 ppb
(D) 100 ppm
103. The phosphorus-solubilising bacterium is
(A) Bacillus subtilis
(B) Bacillus polymyxa
(C) Bacillus cereus
(D) None of the above
104. The DIP Act in India was passed in the year
(A) 1947
(B) 1914
(C) 1946
(D) 1952
105. Inheritance of resistance of a plant to the pathogen was first discovered by
(A) E.C. Stakman
(B) J.C. Walker
(C) H.H. Flor
(D) R.H. Biffen
106. The most popular and efficient species of earthworm for vermicompost is
(A) Eudrilus eugeniae
(B) Eisenia fetida
(C) Lumbricus rubellus
(D) Lumbricus terrestris
107. The seed rate of Indian cotton normally is
(A) 12–15 kg/ha
(B) 25–30 kg/ha
(C) 15–20 kg/ha
(D) 30–40 kg/ha
108. One of the following is a plant growth retardant
(A) Planofix
(B) CCC
(C) Apron
(D) Kinetin
109. Excessive growth due to enlargement of individual cells is
(A) Hyperplasia
(B) Hypertrophy
(C) Enation
(D) Atrophy
110. In India, mango occupies about
(A) 14.2 lakh ha
(B) 60 lakh ha
(C) 25 lakh ha
(D) 9 lakh ha
111. An abnormal proliferation of shoots due to phytoplasma or virus infection is termed as
(A) Witch’s broom
(B) Phyllody
(C) Epinasty
(D) None of the above
112. Pisatin is related to
(A) Maize
(B) Peas
(C) Rice
(D) Wheat
113. The average oil content of soybean seed is about
(A) 20%
(B) 30%
(C) 10%
(D) 40%
114. The virus causing leaf curl disease of cotton is transmitted by
(A) Aphid
(B) Leaf hopper
(C) Beetle
(D) White fly
115. The first high-yielding dwarf variety of rice introduced into India through IRRI was
(A) IR 18
(B) IR 8
(C) IR 36
(D) IR 20
116. In India, presently per capita net availability of edible oils including vanaspati is
(A) 6.5 kg/person/year
(B) 10 kg/person/year
(C) 30 kg/person/year
(D) 14 kg/person/year
117. The sterility mosaic disease of pigeon pea is caused by
(A) Virus
(B) Phytoplasma
(C) Bacterium
(D) Iron deficiency
118. The precursor of auxin (IAA) in higher plants is
(A) Tryptophan
(B) Tyrosine
(C) Phenylalanine
(D) Histidine
119. Killing of bacteria in water by applying strong magnetic field is
(A) Lysis
(B) Plasmolysis
(C) Lysing
(D) Denaturing
120. The principal nematode species causing root knot of groundnuts is
(A) Meloidogyne hapla
(B) Meloidogyne arenaria
(C) Rotylenchus reniformis
(D) Helicotylenchus arachisi
101. A plant growth regulator which promotes cell division, enlargement and apical dominance is called
(A) Auxin
(B) Coleoptile
(C) Essential fatty acids
(D) Essential amino acids
102. Maximum permissible limit of aflatoxins in food products or oil cakes is in the range of
(A) 5–30 ppb
(B) 5–30 ppm
(C) 100 ppb
(D) 100 ppm
103. The phosphorus-solubilising bacterium is
(A) Bacillus subtilis
(B) Bacillus polymyxa
(C) Bacillus cereus
(D) None of the above
104. The DIP Act in India was passed in the year
(A) 1947
(B) 1914
(C) 1946
(D) 1952
105. Inheritance of resistance of a plant to the pathogen was first discovered by
(A) E.C. Stakman
(B) J.C. Walker
(C) H.H. Flor
(D) R.H. Biffen
106. The most popular and efficient species of earthworm for vermicompost is
(A) Eudrilus eugeniae
(B) Eisenia fetida
(C) Lumbricus rubellus
(D) Lumbricus terrestris
107. The seed rate of Indian cotton normally is
(A) 12–15 kg/ha
(B) 25–30 kg/ha
(C) 15–20 kg/ha
(D) 30–40 kg/ha
108. One of the following is a plant growth retardant
(A) Planofix
(B) CCC
(C) Apron
(D) Kinetin
109. Excessive growth due to enlargement of individual cells is
(A) Hyperplasia
(B) Hypertrophy
(C) Enation
(D) Atrophy
110. In India, mango occupies about
(A) 14.2 lakh ha
(B) 60 lakh ha
(C) 25 lakh ha
(D) 9 lakh ha
111. An abnormal proliferation of shoots due to phytoplasma or virus infection is termed as
(A) Witch’s broom
(B) Phyllody
(C) Epinasty
(D) None of the above
112. Pisatin is related to
(A) Maize
(B) Peas
(C) Rice
(D) Wheat
113. The average oil content of soybean seed is about
(A) 20%
(B) 30%
(C) 10%
(D) 40%
114. The virus causing leaf curl disease of cotton is transmitted by
(A) Aphid
(B) Leaf hopper
(C) Beetle
(D) White fly
115. The first high-yielding dwarf variety of rice introduced into India through IRRI was
(A) IR 18
(B) IR 8
(C) IR 36
(D) IR 20
116. In India, presently per capita net availability of edible oils including vanaspati is
(A) 6.5 kg/person/year
(B) 10 kg/person/year
(C) 30 kg/person/year
(D) 14 kg/person/year
117. The sterility mosaic disease of pigeon pea is caused by
(A) Virus
(B) Phytoplasma
(C) Bacterium
(D) Iron deficiency
118. The precursor of auxin (IAA) in higher plants is
(A) Tryptophan
(B) Tyrosine
(C) Phenylalanine
(D) Histidine
119. Killing of bacteria in water by applying strong magnetic field is
(A) Lysis
(B) Plasmolysis
(C) Lysing
(D) Denaturing
120. The principal nematode species causing root knot of groundnuts is
(A) Meloidogyne hapla
(B) Meloidogyne arenaria
(C) Rotylenchus reniformis
(D) Helicotylenchus arachisi
121. All cells of an organism have virtually the same amount of DNA in cellular nuclei with the exception of
(A) Pollen
(B) Egg
(C) Both (A & B)
(D) Meristem cell
122. A molecule of RNA that carries an amino acid molecule to the ribosome for use in protein synthesis
(A) r-RNA
(B) m-RNA
(C) t-RNA
(D) None of the above
123. Nilaparvata lugens is the scientific name of
(A) Green leaf hopper
(B) Brown plant hopper
(C) White-backed plant hopper
(D) Rice water weevil
124. Below poverty line population in India is defined to achieve a nutritional norm up to or below
(A) 1000 calories/person/day
(B) 1500 calories/person/day
(C) 2400 calories/person/day
(D) 3200 calories/person/day
125. Besides India, major investment in research in mango breeding and improvement is underway in
(A) Iran
(B) Israel
(C) Syria
(D) Sri Lanka
126. When the pH of a solution is decreased one unit from 5 to 4, the [H⁺] ion concentration increases
(A) Two folds
(B) One fold
(C) Ten folds
(D) Three folds
127. The term pH for expression of [H⁺] ion concentration was given by
(A) Henderson
(B) Sorensen
(C) Hasselbalch
(D) Henderson and Hasselbalch
128. Most commonly, a buffer solution consists of a mixture of
(A) Water and strong acid
(B) Water and weak acid
(C) Weak acid and weak base
(D) Weak acid and its conjugate base
129. The National Bureau of Plant Genetic Resources (NBPGR) is located at
(A) Lucknow
(B) Karnal
(C) New Delhi
(D) Hyderabad
130. In India, the issue of approval of release of transgenic/genetically modified crops is finalized by
(A) GEAC
(B) ICAR
(C) NBPGR
(D) CSIR
131. Soils with pH < 8.5, EC > 4 dS/m and ESP < 15 are
(A) Saline soils
(B) Alkali soils
(C) Saline-alkali soils
(D) Sodic soils
132. Soils which respond positively to liming are
(A) Acid soils
(B) Saline soils
(C) Alkali soils
(D) Black alkali soils
133. Mitosis and meiosis always differ in respect of the presence of
(A) Chromatids
(B) Homologs
(C) Centromeres
(D) Bivalents
134. The following does not happen in Prophase I of meiosis
(A) Chromosome condensation
(B) Pairing of homologs
(C) Chiasma formation
(D) Segregation
135. One of the following is not a chain termination codon
(A) UUC
(B) UAG
(C) UAA
(D) UGA
136. Acid rain is precipitation with low pH due to presence of air pollutants
(A) NO₂ and SO₂
(B) CO₂ and H₂S
(C) NO and CO₂
(D) CO and CO₂
137. An embryonic shoot of a plant composed of meristem and leaf primordia, often protected by scales, is a
(A) Gall
(B) Nodule
(C) Bud
(D) Knot
138. The alternation of different crop species in the same soil is
(A) Intercropping
(B) Mixed cropping
(C) Relay cropping
(D) Rotational cropping (Crop rotation)
139. Extrachromosomal inheritance is due to non-nuclear genes in
(A) Mitochondria
(B) Chloroplasts
(C) Both (A and B)
(D) None of the above
140. The system of triplet codons is composed of nucleotides of
(A) r-RNA
(B) m-RNA
(C) Both (A and B)
(D) t-RNA
141. Prokaryotes that lack a cell wall are
(A) Bacteria
(B) Phytoplasmas
(C) Spiroplasmas
(D) Mollicutes
101. A plant growth regulator which promotes cell division, enlargement and apical dominance is called
142. Pistil of a seed-bearing flower is composed of:
(A) Ovary
(B) Style
(C) Ovary and Style
(D) Ovary, Style and Stigma
143. A combination of pest control strategies based on environmental and ecological considerations is best known as:
(A) Ecological Pest Control
(B) Environmental Pest Control
(C) Integrated Pest Management
144. Presence of plasmid is observed:
(A) Only in Bacteria
(B) Also in a few yeast and fungi
(C) Both in (A & B)
(D) Viruses
145. Natural auxin is:
(A) IAA
(B) NAA
(C) ABA
(D) GA₃
146. With 70% seed germination, the optimal seed rate of soybean is:
(A) 25 kg seed/ha
(B) 75 kg seed/ha
(C) 100 kg seed/ha
(D) 15 kg seed/ha
147. Wheat protein is deficient in which amino acid?
(A) Glycine
(B) Methionine
(C) Lysine
(D) Phenylalanine
148. Soybean crop has the ability to derive what percentage of its nitrogen requirement from symbiotic fixation?
(A) 25%
(B) 70%
(C) 90%
(D) 10%
149. The Gene-for-Gene theory of plant host–parasite interaction was discovered by:
(A) Jacob and Monod
(B) H.H. Flor
(C) E.C. Stakman
(D) N.E. Borlaug
150. Soybean protein is deficient in which amino acid?
(A) Tyrosine
(B) Leucine
(C) Methionine
(D) Phenylalanine
Matching Type (151–160)
151. Match the following groups:
I. Herbicide
II. Fungicide
III. Insecticide
IV. Nematicide
V. Growth retardant
Options:
(A) DBCP/DD
(B) Oxydemeton-methyl
(C) Fluchloralin
(D) Thiophanate-methyl
(E) CCC
152. Match the following crop disorder with the crop:
I. Tomato
II. Rice
III. Groundnut
IV. Mango
V. Oat
Options:
(A) Khaira
(B) Iron chlorosis
(C) Blossom-end rot
(D) Gray speck
153. Match the following molecule or structure with its description:
I. mRNA
II. tRNA
III. rRNA
IV. Circular DNA
V. Single-stranded DNA
Options:
(A) Mitochondria
(B) Ribosome
(C) Virus
(D) Anticodon
(E) Poly A tail
154. Match the pest species with the crop they infest:
I. Groundnut
II. Rice
III. Chickpea
IV. Sugarcane
V. Wheat
Options:
(A) Chilo infuscatellus
(B) Helicoverpa armigera
(C) Holotrichea consanguinea
(D) Mayetiola destructor
(E) Nilaparvata lugens
155. Match the international agricultural research centers to their location:
I. CIMMYT
II. CIAT
III. AVRDC
IV. ICARDA
V. ICRISAT
Options:
(A) Syria
(B) India
(C) Colombia
(D) Mexico
(E) Taiwan
156. Match the crops:
I. Wheat
II. Sugarcane
III. Bengal Gram
IV. Groundnuts
V. Rice
(A) Taichung Native
(B) Co-1148
(C) TMV-2
(D) Norin 10
(E) C-235
157. Match the following organisms to their pathogens:
I. Soybean
II. Wheat
III. Rice
IV. Chickpea
V. Cotton
Options:
(A) Ramularia areola
(B) Cercospora kikuchii
(C) Bipolaris sorokiniana
(D) Ascochyta rabiei
(E) Magnaporthe grisea
158. Match the crops to their National Research Centers:
I. NRC for Women Agriculture
II. NRC for Onion and Garlic
III. NRC for Weed Science
IV. NRC for Medicinal and Aromatic Plants
V. NRC for Groundnuts
Options:
(A) Pune
(B) Anand
(C) Junagadh
(D) Jabalpur
(E) Bhubaneswar
159. Match the crop to the research center:
I. Cotton Asiatic (G. arboretum)
II. Bread wheat (T. aestivum)
III. Groundnut (A. hypogaea)
IV. Cotton American (G. hirsutum)
V. Durum wheat (T. turgidum)
Chromosome numbers related:
(A) 2n=26
(B) 2n=52
(C) 2n=40
(D) 2n=42
(E) 2n=28
160. Match the genetic terms with definitions:
I. An individual with missing or extra chromosome(s)
II. A polyploidy containing three or more basic chromosome sets from the same species
III. An individual having more than twice the normal haploid number of chromosomes
IV. A haploid plant produced from a diploid species
V. An individual possessing two sets of chromosomes, one set from each parent
Options:
(A) Diploid
(B) Monoploid
(C) Polyploid
(D) Autoploid
(E) Aneuploid
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