Two parents who are not affected by cystic fibrosis have a child who is affected.Assuming that cystic fibrosis is controlled by one gene,what is the probability that their next three children will also be affected by cystic fibrosis?

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The Answer of Two parents who are not affected by cystic fibrosis have a child who is affected.Assuming that cystic fibrosis is controlled by one gene,what is the probability that their next three children will also be affected by cystic fibrosis?

Two Parents Who Are Not Affected by Cystic Fibrosis Have