1) In humans, brown eyes (B) are dominant over blue (b). A brown-eyed man
marries a blue-eyed woman and they have three children, two of whom are
brown-eyed and one of whom is blue-eyed. Draw and complete a Punnett
square to help you answer the questions.
What is the genotype frequency (as a percent) of the children who are BB?

Punnet square drawing