In cystic fibrosis,two unaffected carriers can have a child with the disease.It is as common in boys as in girls.This disease is:

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Cystic fibrosis is an autosomal recessive disorder, which means that it is caused by the inheritance of two copies of the mutated gene (one from each parent). The parents of a child with cystic fibrosis are typically carriers of the mutated gene, meaning they have one copy of it but do not exhibit symptoms of the disease. The disease is equally common in boys and girls, and it is not X-linked, which rules out options B and D. Option A, autosomal dominant inheritance, would require that only one copy of the mutated gene be present for the disease to be expressed, which does not match the characteristics of cystic fibrosis. Finally, while pleiotropic genes do have multiple effects on the phenotype, this is not relevant to the inheritance pattern of cystic fibrosis.

In Cystic Fibrosis,two Unaffected Carriers Can Have a Child with the Disease.It