Jessica's mother has brown eyes, with a dominant gene for brown eyes and a recessive gene for blue eyes. Her father also has brown eyes, with a dominant gene for brown eyes and a recessive gene for blue eyes. What are the chances that Jessica has blue eyes?
A) 0 percent
B) 50 percent
C) 25 percent
D) 75 percent

Question

Quizplus · Accepted Answer

Both parents have a recessive gene for blue eyes, which means that they each have a 25% chance of passing that gene on to Jessica. If Jessica inherits both recessive genes, she will have blue eyes. Therefore, the chance of her having blue eyes is 25%.

Jessica's Mother Has Brown Eyes, with a Dominant Gene for Brown