Question

Sickle Cell Anemia is a recessive disease (aa)
Cystic Fibrosis is also a recessive disease (ff)
A couple has the genotypes AaFf X aaFf
1) What is the probability that the couple will have a child with sickle cell, but not cystic fibrosis?


2) What is the probability that the same couple will have a child with normal blood and cystic fibrosis?


3) What is the probability that the couple will have a child without either disease?

Answer 1

Answer:

1) 3/8

2)1/8

3)3/8

kindly see the attachment for explanation.