Question

Cystic fibrosis is caused by a mutation in which a dominant allele replaces a recessive allele.

Cystic fibrosis is caused by a mutation in which a dominant allele replaces a recessive allele.

Carriers have an advantage over people who do not have the cystic fibrosis mutation.
Carriers have an advantage over people who do not have the cystic fibrosis mutation.

Cystic fibrosis affects a person's ability to make normal red blood cells.
Cystic fibrosis affects a person's ability to make normal red blood cells.

Cystic fibrosis is caused by a deletion of one codon in the DNA molecule.

Answer 1

[AI-generated answer — Bot GPT 3.5]

Cystic fibrosis is not caused by a deletion of one codon in the DNA molecule. It is caused by mutations in the CFTR gene, which leads to faulty production of the cystic fibrosis transmembrane conductance regulator protein. This protein is involved in the regulation of salt and water movement across cell membranes, particularly in the lungs, pancreas, and other organs.