Multiple choice genetics problem?

Question

Kevin has X-linked dominant skin-scaliness. What is the likely scenario for the disease in Kevin's family?

A) He can pass it only to his sons.

B) The disease will skip a generation.

C) His daughter cannot get the disease unless her mother has the disease.

D) His son can get the disease even if his mother is healthy.

E) His daughter can get the disease even if her mother is healthy.

I'm thinking it's C, because well...it's true. If the father has an XSY gene and the mother has just XX, then the daughter will be XSX, so she will be only a carrier, not diseased. Right or wrong?

Answer 1

Kevin can not pass it to his son as he would only pass the Y to his son, his daughter will get the disease as it is dominate and he will pass one X to his daughter, his son can not get the disease unless it is passed on from the mother,

The answer is E his daughter can get the disease even if the mother is healthy as the daughter will receive one X from her mother and the affected X from her father and she only needs one X to be affected as the disease is dominate..