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Question: Genetics Suppose a married man and woman both carry a gene for cystic fibrosis but don't have the disease themselves. According to the laws of genetics, the probability that their first child will develop cystic fibrosis is 0.25.

(a) Explain what this probability means.

(b) If the couple has 4 children, is one of them guaranteed to get cystic fibrosis? Explain.

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