Brown eyes is dominant to light eyes. Mr.O'Ryan has blue (light) eyes. Mrs.O'Ryan is heterozygous for brown eyes. What are the color possibilities of their son?
If you cross these two eye colors, with Mrs. O'Ryan being heterozygous dominant, the produced genotype (genetic probabilty) is 50% blue eyes 50% brown eyes, so their children/child could have blue or brown eyes.
