can some one help me understand punnet squares.
a woman claims that a certain man is the father of her daughter however the man denies this claim the daughter is colorblind but neither the mother nor the alleged father is colorblind who is telling the truth?
1 answer
A daughter has to have both recessive colorblind genes on her X chromosomes. To get a recessive on an X chromosome from the father (XY), he has to have the same level of colorblindness.
1 answer