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If we denote a cystic fibrosis gene with a c and a​ disease-free gene with a...

If we denote a cystic fibrosis gene with a c and a​ disease-free gene with a C​ (since the disease is​ recessive), then only a cc person will actually have the disease. Such persons would ordinarily die before parenting​ children, but a child can also inherit the disease from two Cc parents​ (who themselves are

healthylong dash—that

​is, have no symptoms but are​ "carriers" of the​ disease).

Suppose a child is born to one cystic fibrosis carrier parent and one​ non-carrier parent. Find the probability that that the child will

have thehave the

diseasedisease.

Math   Statistics-And-Probability   
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