The probability that their baby will be a carrier of the gene for PKU is (A) ___3/4_______. The probability that their baby will be affected by PKU is (B) __________. If both genotypes were Pp, the probability that their baby would be affected by PKU would be (C) ___1/4______.

need help on the second answer thought it was 1/2 but it was wrong

1 answer

Is the PKU gene represented by P or p? If the latter, C is correct for the last statement.

Cannot respond to first two questions, because parental genotypes are not given.