Question

A dihybrid cross is created from plants tht are heterozygous for both rounds seeds Nd yellow seed. What is the ratio of offspring that have round seeds and yellow seeds color

Answer 1

The dominant seed color is yellow (Y) and the dominant seed shape is round (R). In a dihybrid self-cross between plants that were heterozygous for both seed shape (round) and seed color (yellow) i.e., RrYy with RrYy, we get 9 out of 16 seeds in the progeny that have round shape and yellow seed color.

Attachments: Punnett Square worksheet image