In humans, brown eye color completely dominates blue. Is it possible to have a blue-eyed child in a family where both parents are brown-eyed? If possible, in what case and with what probability? If not, then why?
It is possible if both parents are heterozygotes. In this case, the probability of having a blue-eyed baby is 25%. The answer can be given by recording the corresponding cross, or on the basis of Mendel’s second law.
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