In humans,a widow's peak is caused by a dominant allele (W),and a continuous hairline is caused by a recessive allele (w).Short fingers are caused by a dominant allele (S),and long fingers are caused by a recessive allele (s).Suppose a woman with a continuous hairline and short fingers and a man with a widow's peak and long fingers have three children.One child has short fingers and a widow's peak,one has long fingers and a widow's peak,and one has long fingers and a continuous hairline.What are the genotypes of the parents?
A) Female wwSS,male WWss
B) Female wwSs,male Wwss
C) Female wwSs,male WWss
D) Female WwSs,male WwSs
E) Female WWSs,male wwss.

Question

Quizplus · Accepted Answer

The woman must be ww for a continuous hairline and Ss for short fingers. The man must be Ww for a widow's peak and ss for long fingers to produce the observed offspring phenotypes.

In Humans,a Widow's Peak Is Caused by a Dominant Allele