Question

round seeds and yellow seed color are dominant to wrinkled seeds and green seed color. what is the probability of having offspring that have wrinkled seeds and yellow seed color for the cross rryy * rryy? 0 percent 25 percent 50 percent 100 percent

Explanation:

Step1: Analyze seed shape

For seed shape, the cross is \(RR\times Rr\). The possible genotypes of offspring for seed shape are \(RR\) and \(Rr\). Since \(R\) (round) is dominant over \(r\) (wrinkled), there is no \(rr\) (wrinkled) genotype for seed shape.

Step2: Analyze seed color

For seed color, the cross is \(Yy\times Yy\). Using the Punnett - square method, \(Yy\times Yy\) gives \(YY:Yy:yy = 1:2:1\). The probability of \(Y-\) (yellow) is \(\frac{3}{4}\), but since the seed - shape part already makes it impossible to have wrinkled seeds (as there is no \(rr\) from the \(RR\times Rr\) cross for seed shape), the overall probability of having wrinkled seeds (which require \(rr\)) is \(0\).

Answer:

0 percent