Suppose That Mother Has Albinism, Which Is a Recessive Trait

Multiple Choice

Suppose that mother has albinism, which is a recessive trait. Suppose also that your father has cystic fibrosis, which is also caused by a recessive trait. And you learn that your father-in-law has albinism and cystic fibrosis. What is the probability that your first child will NOT have either albinism or cystic fibrosis?

A) 1 in 16
B) 1 in 8
C) 3 in 8
D) 2 in 5