A child is born with blue eyes (bb). The child's mother has blue eyes and the father has brown eyes. Which of the following represents the father?

Question

Quizplus · Accepted Answer

The child has blue eyes (bb), which means they received a 'b' allele from each parent. The mother has blue eyes (bb), so she can only pass on a 'b'. The father must have one 'b' allele to pass on to the child, making him heterozygous (Bb) for brown eyes.

A Child Is Born with Blue Eyes (Bb)