agriculture MCQs – Page 65

Practise multiple-choice questions from agriculture for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

agriculture Mcqs

1. soil science 2. agronomy 3. entomology 4. water management 5. horticulture 6. agricultural economics 7. plant pathology 8. food technology 9. animal husbandry 10. plant breeding and genetics

1281. The chromosome number of human race is__________________?
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A. 46

B. 48

C. 44

D. 41

1282. In case of incomplete dominance in the f2 generation_______________________?
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A. Ratio of phenotypes is 3:1

B. None of the above

C. Phenotypic ratio corresponds to the genotypic ratio

D. Ratio of genotypes is 3:1

1283. Duplication of chromosomes occurs during_________________?
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A. Mitosis and meiosis

B. None of the above

C. Mitosis only

D. Meiosis

1284. Global gene bank of barley is located at__________________?
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A. CIP

B. ICRISAT

C. Florida

D. ICARDA

1285. Concept of ideotype was coined by__________________?
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A. Oat

B. Rice

C. Sorghum

D. Wheat

1286. A cross of hybrid with one of its parents is termed as____________________?
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A. Biohybrid

B. Backcross

C. Hybridization

D. Test cross

1287. Homozygous population include_________________?
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A. Multi lines

B. All the above

C. Pure lines

D. Inbreed lines

1288. If the haploid number of chromosomes in a plant is 12, then the number of chromosomes in monosmic is_________________?
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A. 22

B. 24

C. 12

D. 23

1289. Pollen sterility which is controlled by both cytoplasmic and nuclear genes is known as___________________?
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A. GMS

B. CMS

C. all the above

D. CGMS

1290. The most recent evolved plant group is ____________________?
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A. Gymnosperm

B. Confers

C. Mosses

D. grasses

1291. Epitasis implies_____________________?
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A. One gene pair enhances phenotype expression of another gene pair

B. Many gene together control a parucular phenotype

C. One gene pair independently controls a phenotype

D. One pair of gene can completely mask the expression of another gene pair

1292. In wheat, Hessian fly pest is genetically controlled by__________________?
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A. 5D + 5d

B. 1D

C. 2D

D. Cytoplasm

1293. The first ever inter generic crossed has been successfully performed between bamboo and sugarcane by_______________________?
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A. T.S. Verma

B. T.S. Venkatraman

C. R.S. Paroda

D. R.B. Singh

1294. Heterosis can be fixed by___________________?
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A. Polyploidy

B. Asexual reproduction

C. Apomixis

D. All the above

1295. Linkage of hereditary units was discounted by__________________?
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A. W.S. Sutton and K. R. Porter

B. C.B. Bridges and G.H. Shull

C. T.B. Morgan and G. Mendel

D. W. Batson and B.C Pun net

1296. The cell theory was propounded by____________________?
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A. Watson and Crick

B. Sarwin and Wallace

C. Morgan

D. Scheiiden and Schwann

1297. Heterosis can be fully exploited in the form of_____________________?
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A. Synthetics

B. Multi lines

C. Composites

D. Hybrids

1298. All organism or cell having a chromosome number that is not an exact multiple of the monoploid or basic number is known as___________________?
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A. Aneuploid

B. Autopolyploid

C. Euploid

D. Allopolyploid

1299. In the F2 generation, genotypic and phenotypic ratios are identical in cases of___________________?
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A. Mendel lan monohybrids

B. None of the above

C. Incomplete dominance

D. Mendelian dihybrids

1300. Dominance hypothesis of heterosis was first proposed by__________________?
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A. Bruce (1910)

B. Davenport (1908)

C. Shull (1914)

D. Davis (1927)

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