Marsupials are a very old form of mammal, evolving before placental mammals over 70 million years ago. Today Australian marsupials can be compared to placental mammals on other continents. It could be said that today's Australian marsupials and today's placental mammals have undergone heterozygote advantage undergone heterozygote advantage undergone divergent evolution undergone divergent evolution undergone selective advantage undergone selective advantage undergone artificial selection undergone artificial selection undergone convergent evolution

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.