Plant Breeding and Genetics
Polyploidy is most likely to result from _______?
Occurrence of karyokinesis
The crossing over between non homologous chromosomes
Occurrence of crossing over
The failure of homologous chromosomes to separate during meiosis
The failure of homologous chromosomes to separate during meiosis
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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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