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To be a cystic fibrosis carrier do your parents have to have a cystics fibrosis gene?

Yes, since the disease is a recessive inherted trait BOTH parents must carry the gene but not nessacarily have the disease itself.

Approximately 30,000 people in the United States have cystic fibrosis. An additional ten million more-or about one in every 31 Americans-are carriers of the defective CF gene, but do not have the disease. The disease is most common in Caucasians, but it can affect all races.

There is a thing called the "invisable" strand of CF. Where your parent may have the gene of the disease but not have the disease because not both parents had it. If that makes sence.

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First answer by ID1656791825. Last edit by Nikitak17. Contributor trust: 0 [recommend contributor]. Question popularity: 1 [recommend question]

Answers.com > Wiki Answers > Categories > Health > Conditions and Diseases > Cystic Fibrosis > To be a cystic fibrosis carrier do your parents have to have a cystics fibrosis gene?

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