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?

Question

Biology

Moody

1 July, 23:40

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?

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Randall Holmes · 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.