If 93 out of 200 individuals in a group of people express the recessive phenotype for a genetic disorder, what percent of the group are heterozygotes?

All individuals have two alleles for a given trait. according to mendel's these alleles are passed down one each from both mother and father.

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.

Which organisms udergo photosynthesis