Plant Breeding and Genetics
When two genes are situated very close together in a chromosome _______?
Hardly any cross over are detected
The percentage of crossing over between them is very
No crossing ever can ever takes place between them
Only double cross over can take place between them
No crossing ever can ever takes place between them
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Self incompatibility which is controlled by two genes is found in _______?A. Gramineae
B. Cruciferae
C. Solanaceae
D. None of these
Reciprocal recurrent selection is effective with _______?
A. Complete dominance
B. Incomplete
C. Over dominance
D. All the above
Plants can be made disease resistant by _______?
A. Heat treatment
B. Colchicines treatment
C. Breeding with the wild variety
D. Hormone spray
Plants having monoecious flowers are found in _______?
A. Caster
B. Maize
C. Colocasia
D. All the above
Which one is C3 crop plant _______?
A. Tomato
B. Gram
C. Onion
D. all the above
Protoandry is found in _______?
A. Sorghum
B. Wheat
C. Maize
D. Barley
Dominance hypothesis of heterosis was first proposed by _______?
A. Davenport (1908)
B. Bruce (1910)
C. Shull (1914)
D. Davis (1927)
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