Genes R and Y follow independent assortment. RRYY produce round yellow, rryy produce wrinkled green. What will be phenotypic ratio of F2 generation?

Options

1. 1:2:1
2. 3:1
3. 9:3:3:1
4. 9:7

Correct Answer

9:3:3:1

Explanation

Independent assortment of dihybrid cross (RrYy × RrYy) gives 9:3:3:1 ratio.

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