Determine whether a population is evolving."Predict a phenotypic frequency when the frequency of the allele" that causes that phenotype is known. For example, if brown fur is the result of genotype "bb" and the frequency of allele "b" is known. Estimate the frequency of a recessive allele when the phenotypic frequency of the homozygote is known.

Duchenne muscular dystrophy is a serious condition caused by a recessive allele of a gene on the human x chromosome. the patients have muscles that weaken over time because they have absent or decreased dystrophin, a muscle protein. they rarely live past their twenties. how likely is it for a woman to have this condition? a) women can never have this condition. b) one-fourth of the daughters of an affected man would have this condition. c) one-half of the daughters of an affected father and a carrier mother could have this condition. d) only if a woman is xxx could she have this condition.