Q649
The F2 ratio in complementary gene action is
A.
9 : 3 : 4
B.
9 : 7
AnswerC.
15 : 1
D.
18 : 3
Answer: Option B
Solution
Answer: Option B
Solution:
The F2 ratio in complementary gene action is 9 : 7.Complementary gene action is when two different genes work together to contribute to one single trait. These two genes are involved in a specific pathway, like a biochemical reaction, and produce functional products required to produce a certain trait.
A dihybrid cross of complementary genes in F2 generation gives phenotypic ratio as 9 : 7.