Cystic fibrosis (CF) is a recessive autosomal trait. In certain
populations of Northern European descent, the number of people born
with this disorder is about 1 in 2500. Assuming Hardy- Weinberg
equilibrium for this trait: A. What are the frequencies for the
normal and CF alleles? B. What are the genotype frequencies of
homozygous normal, heterozygous, and homozygous affected
individuals? C. Assuming random mating, what is the probability
that two phenotypically unaffected heterozygous carriers will
choose each other as mates?