Which of the following is Top cross
A. (A × O.P variety) × B
B. Inbred × O.P var
C. (A x B) × O.P variety
D. (A × B) × (C × D)
Answer: Option B
Solution (By Examveda Team)
From the given options, Inbred × O.P var is the Top cross.It refers to the use of highly inbred males to the females of the base population or non-inbred population.
The top cross is a cross between a superior or purebred male and inferior female stock to improve the average quality of the progeny.
This Question Belongs to Agriculture >> Genetics And Plant Breeding
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