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Agriculture · Q666

Genetics And Plant Breeding

Graduate and Post Graduate · Agriculture · question 666

Q666

The performance of a double cross hybrid (A × C) × (B × D) can be predicted from the average performance of the combination of

A.
A × B, A × C, C × B and C × D
B.
A × B, A × D, B × C and C × D
Answer
C.
A × B, A × C, A × D and B × C
D.
A × B, C × D, A × C and B × D

Answer: Option B

Solution

Answer: Option B
Solution:
The performance of a double cross hybrid (A × C) × (B × D) can be predicted from the average performance of the combination of A × B, A × D, B × C and C × D.
The performance of a double cross hybrid is predicted based on the average performance of the four non-parental single cross hybrids. In this method, the predicted performance of each of the three possible double-cross hybrids would be different.