A) 9 : 3 : 4
B) 12 : 3 : 1
C) 9 : 3 : 3 : 4
D) 9 : 7
Correct Answer: D
Solution :
In case of complementary genes, the ratio of 9 : 7 is obtained in \[{{F}_{2}}\] generation. This was first discovered by Bateson and Punnet. Complementary genes are those genes which express themselves when present together. None of these two express themselves when present alone.
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