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Consider a family with three children in which both parents are carriers for cystic fibrosis. What...

Consider a family with three children in which both parents are carriers for cystic fibrosis. What is the probability that they will have no affected children?

1) 0

2) 1/64

3) 9/64

4) 16/64 = 1/4

5) 27/64

0 0
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