Neither whales nor pythons have hind legs, but both have internal remnants of legs and hip bones. snakes and whales must have i. evolved from ancestors that walked. ii. developed morphological adaptations for transportation. iii. had their legs bitten off by their mothers at birth.

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.