You are working on a project in which you block autophagy in a particular portion of the brain of a laboratory animal. What happens to these animals? 1) Nothing happens since nerve cells are so long-lived. 2) That region of the nervous system experiences a massive loss of nerve cells. 3) There is slight, but not dangerous damage, to the organelles and proteins of the nerve cells. 4) There is continuous damage to the proteins and organelles of these long-lived cells.

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.