Question

Kent and Lois both carry a dominant gene for brown eye color (B) and a recessive gene for blue eye color (b). That is, they both carry the combination (B,b). If eye color were determined solely by this gene, which outcome would produce a blue-eyed child?

Answer 1

Two people carrying the B,b gene/those who have brown eyes and carry the blue eye gene would have to have children to possible produce a child with blue eyes. There is a 25% chance of a blue eyed child in this case.