Question

Cystic fibrosis is inherited in an autosomal recessive pattern. Males who have cystic fibrosis are usually sterile. Furthermore, the disease is often lethal before the age of reproduction. Even though people with the disease rarely reproduce, cases continue to arise because __________.

Answer 1

people who are heterozygous for Cystic fibrosis would not display the trait but could potentially pass the allele on to their offspring.