question archive A woman with normal parents whose brother has phenylketonuria (PKU) marries a normal man who has a sister affected by PKU
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A woman with normal parents whose brother has phenylketonuria (PKU) marries a normal man who has a
sister affected by PKU. If in a general population the incidence of PKU at birth is 1 in 3,600, what is the
probability that their first child will be affected? O A. 0.0017 O B. 0.0625 O C. 0.0033 O D. 0.111 O E. 0.998