Red-green color blindness is due to an X-linked recessive allele in humans. A widow’s peak (a hairline that comes to a peak in the middle of the forehead) is due to an autosomal dominant allele.
Consider the following family history:
•A man with a widow’s peak and normal color vision marries a color-blind woman with a straight hairline.
The man’s father had a straight hairline, as did both of the woman’s parents.
Use the family history to make predictions about the couple’s children.

Question

Red-green color blindness is due to an X-linked recessive allele in humans. A widow’s peak (a hairline that comes to a peak in the middle of the forehead) is due to an autosomal dominant allele. 
Consider the following family history: 
•A man with a widow’s peak and normal color vision marries a color-blind woman with a straight hairline. 
The man’s father had a straight hairline, as did both of the woman’s parents. 
Use the family history to make predictions about the couple’s children.

anonymous · Answer

The Man is Heterozygous for widow's peak. since he has it, he has at least one dominant allele. but stated that his father was homozygous recessive. and the woman is homozygous recesssive because she doesnt have it at all. The man doesn not have the color blindness but the woman does, so the woman has the allele for red green color blindness on each X chomosome. so their children would be: |dw:1368925582767:dw|