Question

question 35 (multiple choice worth 2 points) (03 06 mc) duchenne muscular dystrophy, or dmd, is a recessive, x - linked disease. what would you expect to see in the offspring of a woman who has dmd and a man who does not have the disease? all of their sons and none of their daughters would have the disease. none of their children would have the disease, but they would all be carriers. all of their daughters and none of their sons would have the disease. their daughters would have the disease and their sons would be carriers.

Explanation:

Duchenne muscular dystrophy (DMD) is an X - linked recessive disorder. A woman with DMD has two mutated X chromosomes. She will pass on one of her mutated X chromosomes to all of her children. Sons will get the Y chromosome from the father and the mutated X from the mother, so all sons will have the disease. Daughters will get one mutated X from the mother and a normal X from the father (since the father does not have the disease), so all daughters will be carriers but not have the disease.

Answer:

All of their sons and none of their daughters would have the disease.