Genetic testing for cystic fibrosis.

Abstract excerpt

Cystic fibrosis occurs in 1 in 2000 to 4000 whites, and about 1 in 25 people are heterozygous carriers. The CF gene is cloned, and a single common mutation is found on 70% to 75% of CF chromosomes in most populations. Numerous different mutations are found on the remaining CF chromosomes. DNA analysis for carrier testing should be offered to relatives of CF patients and to reproductive partners of proven...

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