Amother's use of alcohol, tobacco, marijuana, or cocaine during pregnancy can significantly reduce a. the volume of white matter in her child's brain b. the development of the amygdala in her child's brain c. the development of the hippocampus in her child's brain d. the volume of gray matter in her child's brain

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.