question_answer

In pea yellow colour (\[\text{Y}\]) is dominant over green (\[y\]) and round (\[\text{S}\]) seed is dominant over wrinkled (\[s\]). If \[\text{YySs}\] forms in F1 by cross of YYSS and \[yyss\] what will be the ratio of F2 when F1 plant is self-pollinated?

A)  9 yellow round : 3 yellow wrinkled:3 green round : 1 green wrinkled

B)  9 yellow round : 7 yellow green

C)  15 yellow round : 1 wrinkled green

D)  None of the above