Adouble-blind study is one in which neither the researchers nor the subjects know who is receiving the real treatment and who is receiving the placebo. why are studies designed in this way?

You can tell from this karyotype that the individual is female because the karyotype has two chromosomes labeled

This is so important ugh its 25 points

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.