Duchenne muscular dystrophy (md) is a recessive, sex-linked inherited disease in humans. A cross between a normal man and a woman who is a carrier of this trait, what are the odds that a sons or daughters would have MD? 1. 0% sons, 50% daughters; 2. 50 % both; 3. 50% son, 0% daughters; 4. 100% sons, 0% daughters; why to answer.