A woman with black hair whose father had blond hair reproduces with a blond-haired man. Her mother has type O blood.
Short fingers are dominant over long fingers.
A woman who is heterozygous for an autosomal dominant disorder reproduces with a normal man. Valves prevent backflow of blood into the heart when the heart relaxes. For the following problem, show all of your work. Color blindness is an x-linked recessive trait. Widow s peak is dominant over straight hair line.