The nurse is caring for a child who has been diagnosed with cystic fibrosis, which the nurse knows is an autosomal recessive condition. What are the most likely genotypes of this patient’s healthy parents? C is the healthy allele and c is the disease allele.

Cc and Cc. Generally, the parents of an affected child are unaffected but must be carriers of the necessary allele. Therefore, both parents would most likely be Cc and Cc. CC and CC parents would not have an affected child. Cc and CC parents would also not be able to have an affected child. Although cc and cc parents would have an affected child, they would both exhibit the disease.

The nurse is caring for a child who has been diagnosed with cysti...

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Reduction of Risk Potential
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Category: Reduction of Risk Potential
Difficulty: 7

Topics: Genetics Health Screening

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