For this problem,you may want to create a Punnett Square on a separate piece of paper.Assume brown eyes are dominant to blue eyes and dimples are dominant to no dimples.John has brown eyes and his mother has blue eyes.John does not have dimples.Zena has blue eyes and also has no dimples.What are the chances if this couple have children,they will produce a child with blue eyes and no dimples?
A) 0
B) 1/4
C) 1/2
D) 3/4
E) there is not enough information provided to solve this problem

Question

Quizplus · Accepted Answer

John must be heterozygous for brown eyes (Bb) since his mother has blue eyes (bb). Zena has blue eyes (bb) and no dimples (dd). John does not have dimples (dd). The possible genotypes for their children are Bb or bb for eye color and dd for dimples. The probability of a child having blue eyes (bb) and no dimples (dd) is 1/2.

For This Problem,you May Want to Create a Punnett Square