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.