In humans,widow's peak (W)is dominant over straight hairline (w).If a heterozygous male marries a female with a straight hairline,what percent of their children can be expected to have widow's peak?
A)0%
B)25%
C)50%
D)100%
E)can't be determined

Question

Quizplus · Accepted Answer

The heterozygous male is represented as Ww and the female with straight hairline is represented as ww. Therefore, their possible genotypes of the offspring are WW, Ww, Ww, and ww. The only possible genotype for having a straight hairline is ww. Therefore, only 50% of their children can be expected to have widow's peak (Ww and WW).

In Humans,widow's Peak (W)is Dominant Over Straight Hairline (W)