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This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.

1.

Consider the following four statement (1-4) and select the option which includes all the correct ones only (1) Single cell Spirulina can produce large quantities of food rich in protein, minerals, vitamins etc (2) Body weight-wise the microorganism Methylophilus methylotrophus may be able to produce several times more proteins then the cows pe day (3) Common button mushrooms are a very rich source of vitamin C (4) A rich variety has been developed which is very rich in calciumA. c and dB. a, c and dC. b,c and dD. a and b

Answer» Correct Answer - D
2.

Chick pea is being grown in area where bacterial blight is common. What measurus (a-d) should be taken(a) Spraying Bordeaux mixture (b) Controlling Bordeaux mixture © Controlling insect or vector of pathogen (d) use seeds of disease resistant varietyA. c,dB. a,dC. b,cD. a,b

Answer» Correct Answer - B
3.

Species of Saccharum originally grown in India wasA. S. officinarumB. S. barberiC. S. baulardiiD. S. munja

Answer» Correct Answer - B
4.

Polyethylene glycol method is used forA. Seedless friut productionB. Energy production from sewageC. Gene transfer without a vectorD. Biodiesel production.

Answer» Correct Answer - C
5.

Androgenic haploids were produced from anther culture for the first time byA. BatesonB. NinanC. Auerbach and stadlerD. Gucha and maheswari

Answer» Correct Answer - D
6.

Androgenic haploidy makes use of cellsA. Anther cellsB. Callus cellsC. megaspore cellsD. Micropore cells.

Answer» Correct Answer - A
7.

In maize, hybrid vigour is exploited by:A. Crossing two indreed linesB. Inducing mutationsC. Bombarding the protoplast with DNAD. Harvesting seeds from most productive plants.

Answer» Correct Answer - A
8.

The disease root-knot of brinjal is caused byA. Phytophthara infestansB. Melodiaogyne incognitaC. Fusarium udumD. Xanthomonas citiri

Answer» Correct Answer - B
9.

The principal cereal crop of India isA. WheatB. RiceC. MaizeD. Barley

Answer» Correct Answer - B
10.

plants which require human help for cultivation are calledA. IndulinesB. CultigensC. PredatorsD. Domesticated

Answer» Correct Answer - B
11.

Crop rotation is used by farmers to increaseA. Nitrogenous content of soilB. Organic content of soilC. Community areaD. Soil fertility

Answer» Correct Answer - D
12.

Bomato is somatic hybrid betweenA. Brinjal and tomatoB. Beet root and potatoC. Bean and tomatoD. Bean and potato.

Answer» Correct Answer - A
13.

Emasculation is a part of:A. HybridisationB. Pure line selectionC. Mass selectionD. Clonal selection

Answer» Correct Answer - A
14.

IPGRI isA. Indian plant Genetic Resource InstituteB. International plant Geneitc Resources instituteC. International pine Genetic Resource InstituteD. International Potato Genetic Resource Insitiute.

Answer» Correct Answer - B
15.

Selection is the method ofA. CytologyB. Plant physiologyC. Plant breedingD. Genetics

Answer» Correct Answer - C
16.

Quarantine regulation is meant forA. Preventing entry of disesed plants/pathogen/wlid plants in the countryB. Spraying diseased plants with insectcidesC. Promoting dry farmingD. Growing friut trees in all states.

Answer» Correct Answer - A
17.

Genetically improved crop varieties can be developed byA. Somatic hybridisationB. Transgenic technologyC. Somaclonal variationsD. Both A and B

Answer» Correct Answer - D
18.

Greratest threat of gentic diversity in agriculture crop isA. Extensive use of insecticides and pesticidesB. Extensive mixed croppingC. Introduction of high yielding varietiesD. Extensive use by fertilizers.

Answer» Correct Answer - C
19.

Which of the following shows the correct sequence of steps involved in breeding a new genetic variety of a crop (I) Selection and testing of superior recomnbinants (ii) Gerplasm collection (iii) Cross hybridisation among the selected parents (iv) Evaluation and selection (v) Testing, relases and commericalisation of new cultivarsA. ii, iv, iii, I and vB. I,ii, iv , iii and vC. iii,iv,I, ii and vD. ii, iii, I, iv and v

Answer» Correct Answer - A
20.

In plant breeding programme, the entire collection (of plants/seed) having all the diverse alleles for all genes in a given crop is calledA. Germplasm collectionB. Selection of superior recombinantsC. Cross hybridisation among the selected parentsD. Evalution and selection of parents

Answer» Correct Answer - A
21.

Embryoid isA. Nonzygotic embryoB. Nonfunctional embryoC. Parthenogenatic embryoD. An early stage in callus differentiation.

Answer» Correct Answer - D
22.

Maximum genetic diversity of crop plants occurs where agriculture isA. Run on commercial linesB. AdvancedC. RainfedD. Primitive

Answer» Correct Answer - D
23.

Potato famine of Irelend occurred inA. 1645B. 1745C. 1845D. 1854

Answer» Correct Answer - C
24.

Norin -10 gene is famous forA. Gigas effectB. Dwarfing effectC. Aromatic effectD. Early maturation effect

Answer» Correct Answer - B
25.

To obtain virus free healthy plants from a diseased one by tissue culture technique, which part/parts of the diseased plant will be taken ?A. Palisade parenchymaB. Both apical and axillary meristemsC. Epidermis onlyD. Apical meristerm only

Answer» Correct Answer - B
26.

During hardenting , plants are kept underA. Reduced light and hight humidityB. Increased light and hight humidityC. Reduced light and low humidityD. Increased light and low humidity

Answer» Correct Answer - A
27.

Assertion : Somatic hybridisation is a process where protoplasts of two desired plants can be fused to develop improved plants Reason : Cross breeding can also induce variabilityA. if both are true with reason being correct explanationB. Both true but reason is not correct explanationC. assertion true but reason is wrongD. both are wrong

Answer» Correct Answer - B
28.

Plants obtained thorugh tissue culture are genetically identical and they are obtained by somatic cells. What do you call themA. SomaclonesB. MonoclonesC. Somatic hybridsD. Cross hybrids

Answer» Correct Answer - A
29.

Assertion : Black rust of wheat is a hazardous disease which is caused by puccinia fungus Reason : Afflatoxin is produced in groundnut by the infection of a bacterium.A. if both are true with reason being correct explanationB. Both true but reason is not correct explanationC. assertion true but reason is wrongD. both are wrong

Answer» Correct Answer - C
30.

In tissue culture, callus can be induced to form shoot or root bt altering the ratio ofA. IAAB. ABAC. `GA_(3)`D. Cabbage

Answer» Correct Answer - D
31.

Axenic culture isA. pure culture without any contaminaionB. pure culture without any nutrientC. Culture of tissueD. Culture of gene

Answer» Correct Answer - A
32.

Inherent capacity of a cell to regenerate the whole organism is calledA. TotipotencyB. OntogenyC. PhylogenyD. Proliferation

Answer» Correct Answer - A
33.

Alongwith auxin, another hormone is used in culture technique. It isA. GibberellinB. CytokininC. EthyleneD. Coumarin

Answer» Correct Answer - B
34.

Polyplploidy can be produced artificially byA. colchicineB. IndbreedingC. Line breeding `D. Self pollination

Answer» Correct Answer - A
35.

For hybridisation which part is removed from bisexual flowersA. StigmaB. Stigma and styleC. AnthersD. Ovary

Answer» Correct Answer - C
36.

Semidwarf rice variety IR-8 was developed inA. TaiwnB. PhilippinesC. IndiaD. China

Answer» Correct Answer - B
37.

In pedigree method of hybridisation upto which generation the plants tested and released for cultivationA. `F_(2)` generationB. `F_(3)` generationC. `F_(4)` generationD. `F_(6)` generation

Answer» Correct Answer - B
38.

Plant breeder who developed the first hybrid wasA. FairchildB. MendelC. SwaminathanD. Maheshwari

Answer» Correct Answer - A
39.

Clonal cell lines can be obtained by :A. Tissue cultureB. Tissue fractionationC. Tissue homogenisationD. Tissue system

Answer» Correct Answer - A
40.

The new varieties of plants are produced byA. Selection and hybridisationB. Mutation and selectionC. Introduction and mutationD. Selection and introduction

Answer» Correct Answer - A
41.

Plants can be made disease-resistant byA. Colchicine treatmentB. X-ray treatmentC. Breeding with relativesD. Hormone treatment

Answer» Correct Answer - C
42.

Which will vanish in the absence of human helpA. RiceB. WheatC. MaizeD. Potato

Answer» Correct Answer - C
43.

In which nematode infection is observedA. LeavesB. StemC. RootD. Flowers

Answer» Correct Answer - C
44.

match the columns and find correct option A. a-iii,b-iv,c-I,d-iiB. a-I,b-iii,c-ii,d-ivC. a-iv,b-iii,c-I,d-iiD. a-ii,b-iv,c-I,d-iii

Answer» Correct Answer - A
45.

A semi- dwaf variety of wheat isA. SonalikaB. IR-8C. TriticumD. Saccharum

Answer» Correct Answer - A
46.

Which of the statement about breeding is wrongA. Continued inbreeding reduces fertility and productivityB. By inbreeding pure lines cannot be evolvedC. Cross breeding allows desirable quanlities of two different breeds to be combinedD. Inbreeding exposes harmful recussive genes that are eliminated by selection

Answer» Correct Answer - B
47.

Match the columns and identify the correct choice A. a-iii-2,b-i-4,c-iv-4,d-ii-3B. a-i-2,b-iii-4,c-ii-3,d-iv-1C. a-iv-3,b-i-2,c-iii-I,d-ii-4D. a-iii-4,b-ii-1,c-iv-3,d-1-2

Answer» Correct Answer - A
48.

Pick up the wrong statementA. Pectinase and cellulase dissolve cell wallB. Some cyanobacteria form symbiotic association with fern AzollaC. Regeneration of cell wall in somatic hybridisation is induced by PEGD. Shoot regenertion in callus is promoted by cytokinin like BAP.

Answer» Correct Answer - C
49.

pests which only feed and oviposit on crop areA. major pestsB. Minor pestsC. Accidental pestsD. Occasional pests.

Answer» Correct Answer - A
50.

Which one of the following statements are not related to Scripophage incertulusA. Adult stage does not damage cropB. It is polyhagous pestC. if feeds on inner stem tissueD. It is active in evening

Answer» Correct Answer - B