Question

The punnett square shown below represents the pattern of inheritance in dihybrid cross, when round (r) is dominant over wrinkled (r) seeds and yellow (y) is dominant over green (y) seeds.

Answer 1

The P (Parental) cross is between true-breeding lines of wrinkled yellow peas (rrYY) and round green peas (RRyy). That is, we expect a characteristic 9:3:3:1 phenotypic ratio of round-yellow : wrinkled-yellow : round-green : wrinkled-green pea seeds.