plant breeding and genetics MCQs – Page 3

Practise focused plant breeding and genetics questions with marked answers for exam preparation and subject revision.

plant breeding and genetics Mcqs
41. Tea, coffee and mango seeds can not be converted in seed banks because they drastic loss in viability with decrease in moisture content below.___________________?
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A. 18%

B. 12%

C. 15%

D. 20%

42. The concept of multi line varieties was developed by_________________?
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A. Falconer (1960)

B. Johannsen (1903)

C. Goulden (1939)

D. Jensen (1952)
43. Parthenocarpy is the production of____________________?
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A. Fruit without pollination

B. Only seed and no fruit

C. fruit without fertilization

D. Seed without fertilization

44. Law of parallele variation was given by___________________?
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A. Vavilov

B. Wilkins

C. None of the above

D. Jacob

45. Concept of ideotype___________________?
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A. Model plant type

B. Good plant model

C. Ideal plant type

D. All the above
46. Cytoplasmic sterility is govemed by________________________?
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A. None of the above

B. Plasma genes

C. Nuclear genes

D. Monoalleleic genes

47. Which one is C3 crop plant__________________?
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A. all the above

B. Tomato

C. Onion

D. Gram

48. Drought resistance is associated with___________________?
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A. Physiological factors

B. all the above

C. Biochemical factors

D. Morphological factors

49. Low magnitude of genotype x environmental interaction indicates__________________?
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A. Stability

B. Low buffering capacity

C. Adaptability

D. High buffering capacity
50. Ratio of additive variance to phenotypic variance is called___________________?
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A. Heritability (broad sense)

B. Genetic gain

C. Heritability (narrow sense)

D. Co-heritability

51. Global gene bank of sorghum is located at_______________________?
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A. ICARDA

B. CIP Peru

C. ICRISAT

D. None of the above

52. Split gene was first reported in___________________?
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A. Drosoplulla

B. All the above

C. Cluckens

D. Pea

53. 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
54. Prepotency increase with increase in_______________?
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A. All the above

B. Homogeneity

C. Homozygosity

D. Hetrozygosity

55. Concept of combining ability as measure of gene action was first proposed by___________________?
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A. Sprague and Tatum (1942)

B. Mather (1956)

C. Cavalli (1952)

D. Wright (1951)

56. Erucic acid is found is_____________________?
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A. Til

B. Soybean

C. Mustard

D. Safflower

57. Homozygous population include_________________?
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A. Inbreed lines

B. Multi lines

C. Pure lines

D. All the above
58. ICARDA is located at___________________?
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A. Columbia

B. Syria

C. Tamil Nadu

D. None of the above

59. Herkogamy is found in___________________?
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A. Berseen

B. Barley

C. Lucrene

D. Alfalfa
60. Self incompatibility which is controlled by single gene found in some species of__________________?
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A. All the above

B. Cruciferae

C. Solanaceae

D. Leguminosae