ICAR PG Plant Science - 2021 — Agri Master Mind

Given below are two statements.Statement I: Plastids are site of purine synthesis.Statement II: Cytosol is the site of pyrimidine synthesis.In light of the above statements. choose the correct answer from the options given below.
  • Both Statement I and Statement II are true.
  • Both Statement I and Statement II false
  • Statement I is true, but Statement II is false
  • Statement I is false, but Statement II is true
Match List I with List IIList I List II Human disease/trait Onset of expression A. AlkaptonuriaI. Before birthB. Blood groupsII. About 1 year after birthC. BaldnessIII. Immediately after birthD. RicketsIV. About 20-15 years after birthChoose the correct answer from the options given below:
  • A - III. B - I. C - II. D - IV
  • A - I. B - III. C - IV. D - II
  • A – II. B - IV. C - III. D - I
  • A - III. B - I. C - IV. D - II
Match List I with List II List I List II A. Discovery of human blood groupI. B. McClintockB. Double helical model of DNAII. Crick. Watson and WilkinsC. Genetic improvement ofMexican wheatIII. K. LandsteinerD. Mobile genetic elements in maize IV. N. Borlaug Choose the correct answer from the options given below:
  • A – I. B - II. C – III. D - IV
  • A - II. B - I. C - III. D - IV
  • A - III. B - I. C - II. D - IV
  • A - III. B - II. C - IV. D - I
In a population of 100 individual. which is in Hardy-Weinberg equilibrium. the number of individuals of different phenotypic classes are as follows: 64AA, 32 Aa and 4 aa. The frequency of A and a in this population would be-
  • A=0.64. a=0.36
  • A=0.60. a= 0.40
  • A=0.80. a= 0.20
  • A=0.30. a=0.70
The genotype of a plant is AaBbDd. The genes A and B are linked in coupling: phase with a map distance of 10cM. The gene D is present in different chromosome. Under such situation the frequency of AbD gametes would be?
  • 1/8
  • 9/40
  • 9/20
  • 1/40
Most of the energy in the cells is liberated by oxidation of carbohydrates when A. Pyruvic acid is converted into sugar. B. Pyruvic acid is converted into acetyl-CoA. C. Sugar is converted into pyruvic acid. D. Glucose is converted into alcohol and CO2 E. Pyruvic acid is converted into CO2 and H2O Choose the most appropriate answer from the options given below:
  • A and B only
  • B and C only
  • A and D only
  • E only
In genetic analysis the effect of tight linkage may create confusion with which of the following events?
  • Pseudoallele
  • Pleiotropy
  • Penetrance
  • Epistasis
This question was dropped
The most common secondary structure of protein molecule is-
  • Beta helix
  • Gamma helix
  • Alpha helix
  • Delta helix
Given below are two statements. one is labelled as Assertion (A) and the other is labelled as Reason (R) Assertion A: In the Watson-Crick model of DNA. each tum of the helix is the length of 10 base pairs. Reason R: Each complete tum of the double-stranded DNA helix is 3.4 angstrom long. In light of the above statements. choose the most appropriate answer from the options given below.
  • Both A and R are correct, and R is the correct explanation of A
  • Both A and R are correct, but R is NOT the correct explanation of A
  • A is correct, but R is not correct
  • A is not correct, but R is correct
Given below are two statements. one is labelled as Assertion A and the other is labelled as Reason R Assertion A: Brassica juncea is an allotetraploid having AABB genome. Reason R: Brassica juncea is produced when B nigra is crossed to B campestris In light of the above statements. choose the correct answer from the options given below.
  • Both A and R are true and R is the correct explanation of A
  • Both A and R are true but R is NOT the correct explanation of A
  • A is true, but R is false
  • A is false, but R is true
Given below are two statements Statement I: Growth regulators which control plant growth and development are called phytohormones. Statement II: Apical meristems are responsible for growth in length of branches and roots. In light of the above statements. choose the correct answer from the options given below.
  • Both Statement I and Statement II are true
  • Both Statement I and Statement II are false
  • Statement I is true, but Statement II is false
  • Statement I is false, but Statement II is true
The concept of chromosomal non-disjunction was given by
  • T. H. Morgan
  • A. H. Sturtevant
  • H. E. Muller
  • C. B. Bridges
In sea urchin DNA. which is double stranded, 10% of the bases are shown to be cytosine (C). Based on this observation. the following were recorded. A. Guanine (G) are 10% B. Adenine (A) are 40% C. Thymine (T) are 20% D. Purines are 50% E. Purine and pyrimidine are equal. Choose the correct answer from the options given below:
  • A B C and D only
  • A B C and E only
  • A B D and E only
  • A C D and E only
Given below are two statements Statement I: Matthias Schleiden and Theodore Schwann proposed the first two components of the ' cell theory’. Statement II: Rudolf Virchow proposed the third component of the ' cell theory’. In light of the above statements, choose the most appropriate answer from the options given below
  • Both Statement I and Statement II are correct
  • Both Statement I and Statement II are incorrect
  • Statement I is correct, but Statement II is incorrect
  • Statement I is incorrect, but Statement II is correct
Which of the following statements are true while comparing prokaryotes and eukaryotes A. Prokaryotes have 70S 1ibosomes. eukaryotes have 80S ribosomes. B. Nuclear material is linear in both prokaryotes and eukaryotes. C. Meiosis is the characteristic of eukaryotes. D. Genetic exchange occurs in both prokaryotes and eukaryotes. E. Nuclear membrane is present in both prokaryotes and eukaryotes. Choose the most appropriate answer from the options given below:
  • A, C and D only
  • A, B, C, D only
  • A, B, D, E only
  • A, C, E only
Match List I with List II List I List II A. Zeatin I. Auxin B. Picloram II. Amino acid C. Thiamine III. Cytokinin D. Glutamine IV. Vitamin Choose the correct answer from the options given below:
  • A – I, B – III, C – IV, D - II
  • A – III, B – I, C – IV, D - II
  • A – II, B – I, C – III, D - IV
  • A – III, B – II, C – IV, D - I
In Q-banding experiments the light fluorescent band indicates that the chromosomal region is rich in base pairs
  • T only
  • A only
  • A and T
  • G and C
Which of the following is a form of ex-situ conservation A. Gene banks B. Tissue culture repositories C. National parks D. Biosphere reserves E. Botanical gardens Choose the most appropriate answer from the options given below:
  • A B and E only
  • B D and E only
  • C D and E only
  • A B and C only
Which of the following cell organelle does not contain DNA
  • Lysosome
  • Mitochondria
  • Chloroplast
  • Nucleus
The horn development in sheep (horned sheep) is a suitable example of which of the following events?
  • Sex limited trait
  • Sex influenced trait
  • Sex linked trait
  • Holandric trait
Match List I with List II List I List II Theory or principle Whose name is associated with. A. Central Dogma of molecular biology I. James Watson and FHC Crick B. Chromosomal theory of inheritance II. George W Beadle and Edward Tatum C. DNA double helical structure III. FHC Crick D. One gene-one enzyme IV. Walter Sutton and Theodore Boveri Choose the correct answer from the options given below:
  • A – III, B – IV, C – I, D - II
  • A – III, B – II, C – I, D - IV
  • A -II, B – III, C – IV, D -I
  • A – I, B – II, C – III, D - IV
Colchicine is primarily obtained from which part(s) of the plant
  • Root
  • Shoot apex
  • Mature leaves
  • Corm and seeds
Given below are two statements: Statement I: The light-dependent reactions occur in the stroma in presence of light. Statement II: The light-independent reactions occur in the thylakoid in the absence of light. In light of the above statements. choose the most appropriate answer from the options given. below
  • Both Statement I and Statement II are correct.
  • Both Statement I and Statement II are incorrect
  • Statement I is correct, but Statement II is incorrect
  • Statement I is incorrect, but Statement II is correct
Arrange the following organelles starting from the center to periphery of the cell A. Golgi apparatus B. Nucleolus C. Rough endoplasmic reticulum D. Cell wall E. Plasma membrane Choose the correct answer from the options given below.
  • C, A, B, D, E
  • B, C, A, E, D
  • B, A, C, E, D
  • C, B, A, E, D
Which of the following are NOT chain initiation codons A. UAA B. UAG C. UGA D. AUG E. GUG Choose the correct answer from the options given below.
  • A. B and D only
  • B. C and E only
  • A. B and C only
  • D and E only
The acronym ITPGRFA stands for
  • International Trade on Plant Genetic Resources for Food and Agriculture
  • International Treaty on Plant Genetic Resources for Food and Agriculture
  • International Treaty on Plant Genomic Resources for Food and Agriculture
  • International Treaty on Plant Genomic Resources for Food and Agriculture
On average. how many fragments would a restriction enzyme. which recognizes a specific 5 base sequence in the DNA, would produce from a double-stranded bacteriophage genome of size 5252bp?
  • About 3
  • About 5
  • About 7
  • About 9
Match List I with List II List I List II A. Main product of photosynthesis I. Chloroplast B. The energy-carrying molecule that cells use for energy. II. Autotrophs C. Organisms that make their own food III. ATP D. Organelle of photosynthesis IV. Glucose Choose the correct answer from the options given below:
  • A – I, B – II, C – III, D - IV
  • A – IV, B – II, C – III, D - I
  • A – I, B – III, C – II, D - IV
  • A – IV, B – III, C – II, D - I
Match List I with List II List I List II Particular item Description A. Arboratum I. Bio-geographic higher biodiversity with regionB. Herbarium II. Sum total of genes of a species C. Biodiversity hotspot III. Botanical Garden with trees and shrubs D. Germplasm IV. Collection of dried leaf specimen Choose the correct answer from the options given below:
  • A – III, B - IV, C - I, D - II
  • A – III, B - IV. C – II, D - I
  • A – III, B - I. C - II, D - IV
  • A – IV, B - III, C – I, D - II
Match List I with List II List I List II Name of Scientist A. Hugo de Vries Significant contribution in major field I. Coined the term mitosis. B. W Flemming II. Semi-conservative mode of DNA replication C. Stem III. Mutation D. MS Meselson and FW Stahl IV. Cytological basis of crossing over in Drosophila. Choose the correct answer from the options given below:
  • A - III, B - I, C - II, D - IV
  • A – II, B – I, C – III, D - IV
  • A – III, B – I, C – IV, D - II
  • A – III, B – II, C – I, D - IV
Match List I with List II List I List II Crop Ploidy level A. Rice I. Tetraploid B. Bread wheat II. Triploid C. Durum wheat III. Diploid D. Seedless banana IV. Hexaploid Choose the correct answer from the options given below:
  • A – II. B – I. C – IV. D - III
  • A - III. B – IV. C – I. D - II
  • A - IV. B - I. C – II. D - III
  • A – I. B – IV. C – II. D - III
Cis-trans or complementation test results may be ambiguous, if- A. The mutations are dominant. B. There is intragenic complementation. C. The mutations belong to different genes with different phenotype. D. There is polar mutation. E. There is gene interaction. Choose the correct answer from the options given below.
  • A-B-C-D
  • B-C-D-E
  • A-B-D-E
  • A- C-D-E
The events happening during RNA processing are: A. Capping at the 5'-end. B. Proof-reading of the nascent mRNA. C. Splicing of the introns and joining of the exons. D. Deadenylation at the 3'-end. E. Addition of poly-A tail at the 3'-end. Choose the correct answer from the options given below:
  • A - B - D
  • A - C - E
  • B - D - E
  • B - C - D
Matbch List I with List II List I List II A. Rice I. GMO hybrid B. Tobacco II. GMO for shelf life C. Tomato III. GMO for Vitamin A D. Cotton IV. First GMO Choose the correct answer from the options given below:
  • A - III. B - IV. C - II. D - I
  • A - IV. B - II. C - I. D - III
  • A - II. B - I. C – III. D - IV
  • A - II. B - III. C - IV. D - I
Match List I with List II List I List II Sex index Sexual phenotype A. 1.0 I. Male B. 0.5 II. Sex index C. 0.67 III. Super male D. 0.33 IV. Female Choose the correct answer from the options given below:
  • A - IV. B – I. C – II. D - III
  • A – IV. B - I. C – III. D - II
  • A – IV. B – III. C – I. D - II
  • A – I. B - IV. C – II. D - III
Given below are two statements Statement I: Operon models of gene regulation are applicable to prokaryotes only. Statement II: Eukaryotic DNA contain intervening pieces of DNA called Introns. In light of the above statements. choose the correct answer from the options given below.
  • Both Statement I and Statement II are correct
  • Both Statement I and Statement II are incorrect
  • Statement I is correct, but Statement II is incorrect
  • Statement I is incorrect, but Statement II is correct
If a woman carrier for color blindness marries to a color-blind man and produce several children. the expected phenotype (color blind or normal) of the offspring would be –
  • All the offspring will be color blind.
  • All male offspring will be color blind and all females will be normal
  • All male offspring will be normal, and female will be color blind
  • All female offspring will be carriers of color blindness or color blind
Most commonly used enzymes for DNA manipulation include the following A. NucleasesB. LigasesC. PolymerasesD. KinasesE. HelicasesChoose the most appropriate answer from the options given below:
  • A. D and E only
  • B. D and E only
  • A. B and C only
  • C. D and E only
Given below are two statementsStatement I: Pre-1940. genes were considered to be like 'beads-on-string' and 'not-divisible’.Statement II: In 1940. CP Oliver proved that the genes are divisible. In light of the above statements, choose the most appropriate answer from the options given below
  • Both Statement I and Statement II are correct
  • Both Statement I and Statement II are incorrect
  • Statement I is correct, but Statement II is incorrect
  • Statement I is incorrect, but Statement II is correct
Frequency of recombination between two genes is affected byA. Coupling and repulsion phase of linkageB. Asynapsis and desynapsisC. Location of the gene with respect to the centromereD. Distance between two genesE. Translocation of the genesChoose the correct answer from the options given below:
  • A. B. C and D only
  • A. C. D and E only
  • B. C. D and E only
  • A. B. C and E only
Which of the following molecule is known as the energy currency of the cell
  • ATP
  • AMP
  • NADH
  • FADH2
Given below are two statements Statement I: National Bureau of Animal Genetic Resources is located at Kamal. Statement II: National Bureau of Fish Genetic Resources is located at Chennai. In light of the above statements. choose the correct answer from the options given below.
  • Both Statement I and Statement II are true
  • Both Statement I and Statement II are false
  • Statement I is true, but Statement II is false
  • Statement I is false, but Statement II is true
Match List I with List II List I List II A. National Bureau of Plant Genetic Resources (NBPGR) I. Karnal B. National Bureau of Animal Genetic Resources (NBAGR) II. Lucknow C. National Bureau of fish Genetic Resources (KBFGR) III. Delhi D. National Bureau of Soil survey and Land use Planning (NBSSLUP) IV. Nagpur Choose the correct answer from the options given below:
  • A - III. B - II. C - I. D - IV
  • A - IV. B - I. C - II. D - III
  • A - IV. B - II. C - I. D - III
  • A - III. B - I. C - II. D - IV
Match List I with List II List I List II Types of hybrids Parental combinations of the crosses A. Three-way cross hybrid I. (Inbred Ax Inbred B) x Open pollinated variety B. Modified single cross hybrid. II. Inbred Ax Open pollinated variety C. Double top-cross hybrid III. (Inbred A x Inbred B) x Inbred C D. Top cross hybrid IV. (Inbred Ax A') x Inbred B Choose the correct answer from the options given below:
  • A - III. B - IV. C - II D-I
  • A – III. B - I. C - IV. D-II
  • A – III. B - IV. C – I. D-II
  • A - I. B - IV. C - III. D-II
A tall green gram plant was crossed with a dwarf plant. All the FI plants were of intermediate height. The F2 plants produced different phenotypic classes (plant height) in the ratio of 1:4:6:4:1 How many genes are controlling the plant height?
  • 1
  • 2
  • 3
  • 4
Given below are two statements. one is labelled as Assertion A and the other is labelled as Reason R Assertion A: In reciprocal recurrent selection the two populations so developed can be used as synthetic variety. Reason R: In reciprocal recurrent selection the GCA of both the population is improved simultaneously. In light of the above statements. choose the correct answer from the options given below.
  • Both A and R are true, and R is the correct explanation of A
  • Both A and R are true, but R is NOT the correct explanation of A
  • A is true, but R is false
  • A is false, but R is true
For estimation of mid-parent heterosis. the genotypes included in the trials are. A. F1 hybrids B. Female parents C. Male parents D. Check variety E. Top cross hybrid Choose the correct answer from the options given below:
  • A B and D only
  • A B and C only
  • A B and E only
  • B C and D only
Single cross hybrids can be used for a variety of purposes such as A. Development of three-way cross hybrid. B. Development of composite variety. C. Development of double cross hybrid. D. Prediction of double cross hybrid. E. Back cross generation. Choose the correct answer from the options given below:
  • A, B, D, and E only
  • A, B, and C only
  • A, C, and D only
  • A, B, C, and D only
Match List I with List II List I List II A. Protogyny I. Differential maturation of male and female flowers B. Androgyny II. Stamen matures before pistil. C. Dichogamy III. Pistil matures before stamen. D. Cleistogamy IV. Flower does not open Choose the correct answer from the options given below:
  • A – I. B - III. C – IV. D - II
  • A - III. B - II. C - I D - IV
  • A – II. B – I. C- III. D - IV
  • A - II. B – III. C- IV. D - I
Chronological steps in the development of hybrid A. Development of inbred B. Evaluation of the hybrid with check C. Testing for combining ability. D. Morphological evaluation of inbred E. Seed multiplication Choose the correct answer from the options given below.
  • A - C – D - B - E
  • A - D - B - C - E
  • A - D - C - B - E
  • D - A - C - B - E
Heterosis cannot be fixed if it is obtained through. A. Apomixis B. Balanced lethal system. C. Development of F1 hybrid D. Development of synthetic variety E. Vegetative propagation Choose the correct answer from the option(s) given below:
  • C, D, and E only
  • B, C, and D only
  • B and D only
  • C and D only
Chronological steps in the development of genotype and release of a crop variety A. Preliminary yield trial B. Genotype development C. Multilocation trial D. Notification of variety E. Identification of variety Choose the Correct answer from the options given below.
  • B - C - A - E - D
  • B - A - C - E - D
  • B - A - C - D - E
  • E - B - A - C - D
Match List I with List II List I List II A. Grow-out test I. Test for Vigour of the seed B. Osmotic stress test II. Test for genetic purity of seed C. Viability test III. Test for aliveness of seed D. Brick gravel test IV. Test using PEG and mannitol. Choose the correct answer from the options given below:
  • A - III. B - IV. C - II. D - I
  • A - IV. B - II. C – I. D - III
  • A - II. B - IV. C - III. D - I
  • A - IV. B - III. C - II. D - I
The recommended method for seed germination test in mustard is-
  • Sand method
  • Top of paper method
  • Between paper method
  • Sowing in field
Given below are two statements. one is labeled as Assertion A and the other is labeled as Reason R Assertion A: Magnetic separator in seed processing unit separates the seeds based on seed surface texture and stickiness of the seeds. Reason R: Insect-damaged and partially filled seeds may appear to be same as the normal seeds in shape and size but it varies in their- specific gravity. In light of the above statements. Choose the correct answer from the options given below.
  • Both A and R are true, and R is the correct explanation of A
  • Both A and R are true, but R is NOT the correct explanation of A
  • A is true, but R is false
  • A is false, but R is true
Development of seedless fruit would not be useful in case of-
  • Mango
  • Grape
  • Orange
  • Pomegranate
The gas used in gas delinting of cotton seeds is-
  • Dry CO2
  • Nitric oxide
  • Sulphur di-oxide
  • Dry hydrochloric acid
Color of the seed tag used in Foundation seed is-
  • Azure Blue
  • White
  • Golden yellow
  • Red
In case of okra or bhindi (Abelmoschus esculentus) seeds, the minimum per cent of pure seeds for certification is:
  • 99
  • 98
  • 97
  • 96
Seed coat is derived from ?
  • Nucellus
  • Embryo
  • Endosperm
  • Testa
Given below are two statements. one is labelled as Assertion A and the other is labelled as Reason R Assertion A: Flag leaf clipping in hybrid seed production in rice promotes higher seed setting. Reason R: Flag leaf of rice intercepts more sunlight and facilitates accumulation of more photosynthates in the seeds as it is nearer to the panicle. In light of the above statements. choose the correct answer from the options given below.
  • Both A and R are true, and R is the correct explanation of A
  • Both A and R are true, but R is NOT the correct explanation of A
  • A is true, but R is false
  • A is false, but R is true
Given below are two statements Statement I: Presence of objectionable weed seed reduces the physiological quality of a seed lot. Statement II: Seeds of objectionable weed have same shape and size as the main crop seeds. In light of the above statements, choose the correct answer from the options given below.
  • Both Statement I and Statement II are true
  • Both Statement I and Statement II are false
  • Statement I is true, but Statement II is false
  • Statement I is false, but Statement II is true
Match List I with List II List I List II Crop Isolation distance (m) in certified seeds A. Wheat I. 1000 B. Composite variety of maize II.100 C. Radish III. 3 D. Pigeon pea IV. 200 Choose the correct answer from the options given below:
  • A - III. B - IV. C – II. D - I
  • A - III. B - IV. C - I. D - II
  • A – III. B – II. C – IV. D - I
  • A – II. B – I. C - IV. D - III
The electrical conductivity (EC) test in seed testing gives a clear indication of-
  • Dehydrogenase activity
  • Alpha-amylase activity
  • Integrity of cell membrane
  • Glutamic acid decarboxylase activity
Recalcitrant seeds are A. Susceptible to desiccation B. Susceptible to freezing. C. Tolerant to desiccation but susceptible to freezing. D. Tolerant to freezing but susceptible to desiccation. E. Tolerant to desiccation and freezing both. Choose the most appropriate answer from the options given below:
  • C. D and E only
  • E only
  • A and B only
  • C and D only
Light pathway of a typical microscope consists of several items. viz. A. Light source to Mirror B. Field Diaphragm to Condenser C. Stage to Specimen D. Objective to Body E. Ocular to Eye/Camera Choose the correct answer from the options given below.
  • Light path is A to C to B to D to E
  • Light path is A to D to C to B to E
  • Light path is A to B to C to D to E
  • Light path is A to E to C to B to D
Match List I with List II List I List II A. Sesbania rostrata I. Azotobacter B. Vermi-composting II. Anabaena C. Heterocyst III. Green manure D. Cyst IV. Earthworm Choose the correct answer from the options given below.
  • A – III. B - IV. C - I. D - II
  • A - IV. B - II. C - I. D - III
  • A - III. B - II. C - IV. D - I
  • A - III. B - IV. C - II. D - I
Match List I with List II List I List II A. Pseudomurein I. Gram negative bacteria B. Cell Outer Membrane II. Bacteria C. Algae-fungus association III. Induction of Nod genes D. Flavonoids IV. Lichens Choose the correct answer from the options given below:
  • A - II. B - III. C - IV. D - I
  • A - II. B - I. C - IV. D - III
  • A - III. B - IV. C - II. D - I
  • A - III. B - II. C - IV. D - I
Given below are two statements Statement I: Fermentation of cattle dung produces biogas which can be used for cooking, and the slurry produced can be used as organic manure. Statement II: Ethane is the primary constituent of biogas. In light of the above statements, choose the most appropriate answer from the options given below.
  • Both Statement I and Statement II are correct
  • Both Statement I and Statement II are incorrect
  • Statement II, correct but Statement II is incorrect
  • Statement I is incorrect, but Statement II is correct
Members of which of the nitrogen fixing genera form symbiotic associations with aquatic fern Azolla
  • Nostoc
  • Anabaena
  • Azotobacter
  • Calothrix
Which of the following requires oxygen for aerobic respiration but can also grow under anaerobic conditions?
  • Strict anaerobic bacteria
  • Micro-aerophilic bacteria
  • Facultative anaerobic bacteria
  • Aerobic bacteria
Match List I with List II List I List II A. Dipicolinic acid I. Filter sterilization B. Mycoplasmas II. Endospore C. Heat labile liquids III. Mollicutes D. Steam under pressure IV. Autoclave Choose the correct answer from the options given below:
  • A – III. B – IV. C – I. D - II
  • A – II. B - III. C – I. D - IV
  • A - II. B - III. C - IV. D - I
  • A – III. B – II. C – IV. D - I
Given below are two statement(s) Statement I: Nitrification is the biological oxidation of Ammonia to nitrates in two steps. Statement II: Members of genus Nitrobacter are involved in the oxidation of nitrites to nitrates. In light of the above statements. choose the most appropriate answer from the options given below.
  • Both Statement I and Statement II are correct
  • Both Statement I and Statement II are incorrect
  • Statement I is correct, but Statement II is incorrect
  • Statement I is incorrect, but Statement II is correct
Which of the following can be used for surface sterilization of plant material
  • Sodium chloride
  • Sodium hydroxide
  • Sodium sulphate
  • Sodium hypochlorite
Given below are two statements. one is labelled as Assertion A and the other is labelled as Reason R Assertion A: Rotation with legume crops can increase the nitrogen levels in the soil thus improving: the soil fertility Reason R: Legume crops harbor nitrogen fixing bacteria in the root nodules that can convert inert nitrogen from the atmosphere to plant usable form In light of the above statements. choose the correct answer from the options given below.
  • Both A and R are true, and R is the correct explanation of A
  • Both A and R are true, but R is NOT the correct explanation of A
  • A is true, but R is false
  • A is false, but R is true
Given below are two statements Statement I: A phototrophic microorganism can derive all carbon requirements from the principal carbon source. Statement II: An auxotrophic microorganism requires one or more growth factors in addition to the principal carbon source. In light of the above statements. choose the most appropriate answer from the options given below.
  • Both Statement I and Statement II are correct
  • Both Statement I and Statement II are incorrect
  • Statement I is correct, but Statement II is incorrect
  • Statement I is incorrect, but Statement II is correct
Ideal C: N ratio of the mature compost is
  • <20: 1
  • 35:1
  • 60: 1
  • 100: 1
Given below are two statements. one is labeled as Assertion A and the other is labeled as Reason R Assertion A: Polycyclic diseases are known to cause plant disease epidemics. Reason R: Poly cyclic disease inciting pathogens produce multiplicity of infections in short time. In light of the above statement. choose the correct answer from the options given below.
  • Both A and R are true, and R is the correct explanation of A
  • Both A and R are true, but R is NOT the correct explanation of A
  • A is true, but R is false
  • A is false, but R is true
Rust diseases are caused by A. Puccinia B. Albugo C. Cephalerous D. Uromyces E. Gymnosporangium Choose the correct answer from the option given below.
  • Puccinia causes rust only on wheat
  • Albugo causes rust on mustard
  • Cephalerous causes rust on barley
  • Uromyces and Gymnosporangium causes rust on tomato
Which of the following statements are true for Koch's postulates A. The Microorganisms must be present in every case of the disease. B. The microorganism may not be present in every case of the disease C. The microorganisms must be isolated from the diseased host and grown in pure culture. D. The specific disease must be reproduced on inoculation of a pure culture of microorganisms in the healthy susceptible host E. The microorganism must be recoverable once again from the inoculated susceptible host. Choose the most appropriate answer from the options given below:
  • A. B. C and D only
  • A. B. C. D. E
  • A. C. D. E only
  • C. D. E only
Given below are two statements Statement I: Plant viruses are transmitted by insects. Statement II: Only sucking insects are capable of transmitting plant viruses. In light of the above statements. choose the most appropriate answer from the options given below.
  • Both Statement I and Statement II are correct
  • Both Statement I and Statement II are incorrect
  • Statement I is correct, but Statement II is incorrect
  • Statement I is incorrect, but Statement II is correct
Which of the following plant disease was responsible for environmental disturbances impacting even the wildlife
  • Late blight of potato
  • Chestnut blight
  • Downy mildew of grapevine
  • Southern Corn blight
Given below are two statements. one is labelled as Assertion A and the other is labelled as Reason R Assertion A: Phytoplasma is a motile bacterium. Reason R: Phytoplasma is transmitted by leaf hopper. In light of the above statements, choose the correct answer from the options given below.
  • Both A and R are true, and R is the correct explanation of A
  • Both A and R are true but R is NOT the correct explanation of A
  • A is true, but R is false
  • A is false, but R is true
Panama wilt of banana caused by Fusarium oxysporum f. sp. cubense is an internationally known plant disease A. Gros Michel variety of banana is susceptible to race 1. B. Gros Michel variety of banana is resistant to race 1. C. Cavendish variety of banana is susceptible to race 4. D. Cavendish variety of banana is resistant to race 4. E. Both Gros Michel and Cavendish are susceptible to race 1. Choose the most appropriate answer from the options given below:
  • C and D only
  • D and E only
  • A and B only
  • A and C only
Given below are two statements. one is labelled as Assertion A and the other is labelled as Reason R Assertion A: In lysogenic cycle the vim! nucleic acid does not hamper the functions of host bacterium Reason R: In lysogenic cycle the nucleic acid of phage gets incorporated into the host DNA and becomes a prophage. acting as a gene In light of the above statements. choose the correct answer from the options given below.
  • Both A and R are true, and R is the correct explanation of A
  • Both A and R are true, but R is NOT the correct explanation of A
  • A is true but R is false
  • A is false, but R is true
Rot diseases are caused by
  • Fusarium oxysporium
  • Fusarium solani
  • Ralstonia solanacearum
  • Ralstonia pseudosolanacearum
Given below are two statements Statement I: True fungi is typically terrestrial-adapted organisms. Statement II: True fungi possess chitin in the cell wall. In light of the above statements. choose the most appropriate answer from the options given below.
  • Both Statement I and Statement II are correct
  • Both Statement I and Statement II are incorrect
  • Statement I is correct, but Statement II is incorrect
  • Statement I is incorrect, but Statement II is correct
Given below are two statements. one is labelled as Assertion A and the other is labelled as Reason R Assertion A: Plant disease symptoms need not harbor the pathogen propagules always Reason R: Crown gall harbors Agrobacterium tumefaciens In light of the above statements. choose the correct answer from the options given below.
  • Both A and R are true, and R is the correct explanation of A
  • Both A and R are true, but R is NOT the correct explanation of A
  • A is true, but R is false
  • A is false, but R is true
Given below are two statements. one is labelled as Assertion A and the other is labelled as Reason R Assertion A: Antibiotics are sterilized by bacteriological filters but not by heat. Reason R: Antibiotics are thermo labile compounds. In light of the above statements, choose the correct answer from the options given below.
  • Both A and R are true, and R is the correct explanation of A
  • Both A and R are true, but R is NOT the correct explanation of A
  • A is true, but R is false
  • A is false, but R is true
Which of the following are the properties of Mollicutes A. Lack of a defined cell wall B. Resistance to penicillin C. Pleomorphic shape D. Resistance to tetracycline E. Parasitism on eukaryotic organisms Choose the most appropriate answer from the options given below:
  • A, B, C and D only
  • A, C, D and E only
  • A, B, C, D and E
  • A, B, C and E only
Wilt diseases are caused by
  • Heat
  • Drought
  • Bacteria and Fungi
  • Viroids
Powdery mildew diseases of crop plants are incited by
  • Fungal Biotrophs
  • Bacterial Biotrophs
  • Fungal Hemi biotrophs
  • Fungal Necrotrophs
Given below are two statements Statement I: Viruses are the only pathogens transmitted by nematodes. Statement II: Biotic agents associated with plants are known to transmit plant pathogens In light of the above statements, choose the most appropriate answer from the options given below.
  • Both Statement I and Statement II are correct.
  • Both Statement I and Statement II are incorrect
  • Statement I is correct, but Statement II is incorrect
  • Statement I is incorrect, but Statement II is correct
Match List I with List II List I List II A. Chlorosis I. Fire blight of apple B. Hyperplasia II. Mosaic disease of tobacco C. Epinasty III. Bacterial wilt of tomato D. Etiolation IV. Crown gall of rose. E. Necrosis V. Bakanae disease of rice Choose the correct answer from the options given below:
  • A - III. B - IV. C - II. D - V. E - I
  • A – II. B – IV. C – III. D – V. E - I
  • A - III. B – V. C – II. D – IV. E - I
  • A - II. B – V. C – I. D - IV. E - III
Arrange the following events of phage replication in correct sequence A. Replication and synthesis B. Penetration C. Adsorption D. Lysis and release E. Assembly of phage particles Choose the correct answer from the options given below.
  • B, E, C, A, D
  • C, B, E, A, D
  • C, B, A, E, D
  • B, C, A, E, D
Match List I with List II List I List II A. Anton De Bary I. Gene for Gene hypothesis B. M.W. Beijerinck II. Late blight of potato C. T. J. Burril III. Bacterial disease of plants D. E. J. Butler IV. Viruses E. H.J. Flor V. Imperial Mycologist Choose the correct answer from the options given below:
  • A – III. B - IV. C – II. D - V. E - I
  • A - II. B - IV. C - III. D – V. E - I
  • A – III. B - V. C - II. D – IV. E - I
  • A - II. B - V. C - I. D - IV. E - III
Which of the following belong to Oomycetes
  • Pestalotia
  • Phyllostica
  • Plasmopora
  • Puccinia
Given below are two statements. one is labelled as Assertion A and the other is labelled as Reason R Assertion A: While allo infection increases disease incidence the autoinfection increases disease severity. Reason R: Neither autoinfection nor alloinfection is sufficient to cause disease epidemics. In light of the above statements. choose the correct answer from the options given below.
  • Both A and R are true, and R is the correct explanation of A
  • Both A and R are true, but R is NOT the correct explanation of A
  • A is true, but R is false
  • A is false, but R is true
Given below are two statements. one is labelled as Assertion A and the other is labelled as Reason R Assertion A : Barberry is an alternate host for Puccinia graminis f. sp. tritici Reason R : Barberry play key role in rust epidemics in India In light of the above statements. choose the correct answer from the options given below.
  • Both A and R are true, and R is the correct explanation of A
  • Both A and R are true but R is NOT the correct explanation of A
  • A is true, but R is false
  • A is false but R is true
Given below are two statements. one is labelled as Assertion A and the other is labelled as Reason R Assertion A: Foliar plant pathogen produces pigmented and colored spores. Reason R: The dark pigmentation helps the pathogens to adapt on foliar parts to withstand high radiation. In light of the above statements. choose the correct answer from the options given below.
  • Both A and R are true and R is the correct explanation of A
  • Both A and R are true, but R is NOT the correct explanation of A
  • A is true, but R is false
  • A is false, but R is true
Plant pathogens can be detected and identified using ELISA and PCR A. ELISA based detection is more useful for viral pathogen detection than bacterial. pathogens B. Fungal diseases are more amenable for ELISA based detection than plant viruses. C. Bacterial pathogens are more amenable for PCR based detection than plant viruses. D. Bacterial pathogens are more amenable for PCR based detection than fungal pathogens. E. Phytoplasma is more amenable for PCR based detection than ELISA. Choose the most appropriate answer from the options given below:
  • B and C only
  • D and E only
  • B and D only
  • A and E only
Given below are two statements Statement I: American grapevine root stock helped the French farmers to control root aphids. Statement II: Root aphid resistant American root stock was also resistant to grapevine. downy mildew In light of the above statements. choose the most appropriate answer from the options given below.
  • Both Statement I and Statement II are correct
  • Both Statement I and Statement II are incorrect
  • Statement I is correct, but Statement II is incorrect
  • Statement I is incorrect, but Statement II is correct
Given below are two statements Statement I: Horizontal and Vertical Resistance defend crop plants against pathogens. Statement II: Horizontal Resistance is more frequently exploited in resistance breeding programme than Vertical Resistance In light of the above statements, choose the most appropriate answer from the options given below.
  • Both Statement I and Statement II are correct.
  • Both Statement I and Statement II are correct
  • Statement I is correct, but Statement II is incorrect
  • Statement I is incorrect, but Statement II is correct
Motile infective propagules are produced by A. Pythium B. Phytophthora C. Xanthomonas D. Ralstonia E. Nematodes Choose the correct answer from the options given below:
  • Pythium and Phytophthora possess pili
  • Pythium and Phytophthora possess fimbria
  • Nematodes have flagella
  • Xanthomonas and Ralstonia possess flagella
Given below are two statements. one is labelled as Assertion A and the other is labelled as Reason R Assertion A: In DUS trials, the number and nature of varieties largely determine the use of experimental design. Reason R: Randomized Incomplete Block Design is the most used experimental design in DUS trials. In light of the above statements. choose the most appropriate answer from the options given below.
  • Both A and R are correct, and R is the collect explanation of A
  • Both A and R are correct, but R is NOT the correct explanation of A
  • A is correct, but R is not correct
  • A is not correct, but R is correct
The Food and Agriculture Organization (FAO) of United Nations has declared 2023 as the International Year of?
  • Cereals
  • Pulses
  • Millets
  • Oilseeds
Which of the following processes cause losses of nitrogen from the cultivated soils A. Leaching B. Volatilization C. Biological nitrogen fixation D. Denitrification E. Green manuring Choose the most appropriate answer from the options given below:
  • A and B only
  • A and D only
  • A B and D only
  • C and E only
Given below are two statements Statement I: National Agriculturally important Microbial Culture Collection (NAIMCC) is located in Mau Nath Bhanjan, Uttar Pradesh Statement II: NAIMCC has acquired the status of international Depository Authority under Budapest treaty in 2020 In light of the above statements, choose the most appropriate answer from the options given below.
  • Both Statement I and Statement II are correct
  • Both Statement I and Statement II are incorrect
  • Statement I is correct, but Statement II is incorrect
  • Statement I is incorrect, but Statement II is correct
The combination of the following crops yields the staple food of India?
  • Wheat-Barley-Oats
  • Rice-Wheat-Maize
  • Wheat-Pulses-Oilseeds
  • Rice-Wheat-Millet
This question was dropped by ICAR
Given below are two statements. Statement I: 'import permit is an official document needed to introduce in india any plant genetic resources from other countries. Statement II: The import permit is signed by the Director General ICAR. In light of the above statement, choose the correct answer from the options given below.
  • Both Statement I and Statement II are true
  • Both Statement I and Statement II are false
  • Statement I is true, but Statement II is false
  • Statement I is false, but Statement II is true
Which of the following is fiber yielding plant
  • Triticum aestivum
  • Gossypium hirsutum
  • Lens culinaris
  • Glycine max
Given below are two statements Statement I: Rafi Ahmad Kidwai Award is bestowed by CSIR to a scientist of repute for contribution in the field of agriculture. Statement II: ICAR awards Punjab Rao Deshmukh Woman Agricultural Scientist Award annually. In light of the above statements. choose the correct answer from the options given below.
  • Both Statement I and Statement II are true
  • Both Statement I and Statement II are false
  • Statement I is true, but Statement II is false
  • Statement I is false, but Statement II is true
Given below are two statements. one is labelled as Assertion A and the other is labelled as Reason R Assertion A: Soils of north -East India are primarily acidic in nature. Reason R: Among others. the most common element in the soils of North-East India is 'Ca’ which contributes toward acidity of the soil. In light of the above statements. choose the correct answer from the options given below.
  • Both A and R are true, and R is the correct explanation of A
  • Both A and R are true, but R is NOT the correct explanation of A
  • A is true, but R is false
  • A is false, but R is true
Match List I with List II List I List II ICAR institute Location of HQ A. Indian Institute of Maize Research I. Kamal B. National Institute of Abiotic Stress Management II. Hyderabad C. Indian Institute of Rice Research III. Ludhiana D. India Institute of Wheat and Barley Research IV. Baramati Choose the correct answer from the options given below:
  • A – II. B - I. C - III. D - IV
  • A - III. B - IV. C – II. D - I
  • A – III. B – II. C - IV. D - I
  • A - IV. B - I. C – II. D - III
Match List I with List II List I List II A. ICRISAT I. London B. Kew Botanical Garden II. Chennai C. National Biodiversity Authority III. New Delhi D. Protection of Plant Varieties and farmers Rights Authority IV. Patencheru Choose the correct answer from the options given below:
  • A - IV, B - I, C – II, D - III
  • A – III, B - IV, C – II, D - I
  • A -I, B -II, C -III, D- IV
  • A - IV, B – III, C – II, D - I
Match List I with List II List I List II Objectionable weed Crop A. Argemone maxicana I. Lucerne B. Johnson grass II. Rapeseed and mustard C. Cichorium inotybus III. Sorghum D. Phalaris minor IV. Wheat Choose the correct answer from the options given below:
  • A – II, B - III, C - IV, D - I
  • A – II, B - III, C - I, D - IV
  • A – II, B – I, C - III, D - IV
  • A - IV, B - III, C – I, D - II
The Ramsar Convention is an international treaty for the conservation and utilization of-
  • Dry land
  • Wet land
  • Rainforest
  • Desert
Match List I with List II Name of International Institute Major mandate crop A. ICRISAT I. Wheat B. IITA II. Pigeon pea C. CIAT III. Cassava D. CYMMIT IV. Cowpea Choose the correct answer from the options given below:
  • A - II, B - IV, C - I, D - III
  • A – II, B - IV, C - III, D - I
  • A – IV, B - II, C – III, D - I
  • A – IV, B - I, C - III, D - II
Match List I with List II List I List II A. ITCC I. Belgium B. MTCC II. England C. NCPPB III. New Delhi D. ATCC IV. Chandigarh E. LMG V. USA Choose the correct answer from the options given below.
  • A - III. B - IV. C - II. D - V. E - I
  • A - II. B - IV. C - III. D - V. E - I
  • A - III. B - V. C - II. D - IV. E - I
  • A - II. B - V. C - I. D - IV. E - III
Which of the following represents vertisol
  • Black cotton soil
  • Sandy loam sodic soil
  • Submontane (Tarai) soil
  • Red loamy soil