Question

A couple has three children, all whom have brown eyes and blond hair. Both parents are homozygous for brown eyes (BB) but one is a blond (rr) and the other is a redhead (Rr). What is the probability that their next child will be a brown-eyed redhead

Answer 1

Answer: 50%

Step-by-step explanation:

The parental generation would be: BBrr x BBRr

Using the table attached below, we can see there will be a 50% chance for the third child to get brown eyes and be a redhead (BBRr)