Zoe, a 20-year-old woman, shows signs of mild muscle weakness. She has two first cousins on her mother's side who died of Duchenne's muscular dystrophy (DMD).Whichexplanation regarding Zoe's situation is most likely?

Question

Quizplus · Accepted Answer

Some female carriers of DMD show partial gene expression and can demonstrate symptoms of the disease. It is very likely that she is a carrier because this X-linked recessive disease has been seen in her family. It is highly unlikely that she would have received two defective dystrophin genes from her parents because men with DMD tend not to father children.

Zoe, a 20-Year-Old Woman, Shows Signs of Mild Muscle Weakness