Question

Cystic fibrosis (CF) leads to some body secretions being too viscous. This genetic disease is inherited in an autosomal recessive pattern. Males who have cystic fibrosis disease are usually reproductively sterile. Furthermore, the disease is often lethal before the age of reproduction. Even though people with the disease rarely reproduce, the disease continues to show up in human populations because __________.a. the harmful allele "hides" inside heterozygous individuals and when two heterozygous people have children there is a 1 in 4 chance they will have a child with CF.b. new mutations of this gene occur much more frequently than most of the genes in the human genomec. mosquitoes can transfer the disease from person to persond. people continue to make inappropriate lifestyle choices

Answer 1

A - The harmful allele "hides" inside heterozygous individuals and when two heterozygous people have children there is a 1 in 4 chance they will have a child with CF

Step-by-step explanation:

Since the the disease reduces the chances of an infected to reach reproductive age, and even if reached, makes them sterile. It can only be determined that it's mostly transferred via mating of heterozygous parents or carriers of the disease.