Question

Explain Mendel's dihybrid ratio with the help of any one cross.

Answer 1

Dihybrid cross is a cross between two parents that have two pairs of contrasting characters, for example, a plant having round and yellow seeds is crossed with a plant having green and wrinkled seeds.

The phenotypic ratio obtained in the $F_2$ generation is

9:3:3:1

Where 9 = Round ,Yellow

3 = Round , green

3 = wrinkled , Yellow

1 = wrinkled , green