The mother of a child with newly diagnosed Duchenne's muscular dystrophy asks how her child developed the disease. The nurse gives a response incorporating which of the following statements about its...

The mother of a child with newly diagnosed Duchenne's muscular dystrophy asks how her child developed the disease. The nurse gives a response incorporating which of the following statements about its transmission?

1. It is an autosomal recessive genetic disorder.

2. It is a genetic disorder carried by males and transmitted to male children.

3. It is a disorder primarily transmitted by males in the family.

4. It is a disorder usually carried by females and transmitted to male children.