In both parents are carriers of PKU

Question

A one child out of four will develop the disorder
B none of the children will develop the disorder
C their daughters are more likely to develop the disorder than their sons are.
D all of their children will develop the disorder

I believe A is the correct answer

AFP can be used to
A assess sex chromosome abnormalities
B detect neural tube defects
C assess some degree of mental retardation
D measure anzyme levels in the fetus

I belive the correct answer is B

Answer 1

I think both of your answers are right.