Question

A woman with a genetic disease marries a man who does not carry the disease. It is not possible for their children to carry the disease. The disease must be

-sex-linked
-recessive
-dominant
-caused by an extra chromosome

Answer 1

A woman with a genetic disease marries a man who does not carry the disease. It is not possible for their children to carry the disease. The disease must be recessive.
A recessive disease requires both parents to have it in order to pass it down to children.