Biologyhard · Past Paper
What is the phenotypic ratio in the F2 generation of a dihybrid cross if the traits show incomplete dominance?
A9:3:3:1
B1:2:1:2:4:2:1:2:1
C1:2:1
D3:1
✓ Correct Answer: B — 1:2:1:2:4:2:1:2:1
When incomplete dominance or codominance occurs in both traits, the phenotypic ratio matches the complex genotypic ratio.
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