Can two brown-eyed parents can have a blue-eyed child?

Yes, they can, and this actually follows the most simple rules of genetics. Blue eyes are, generally speaking, recessive to brown eyes. Say “B” is a gene for brown pigment and “b” is a gene for no pigment (default blue). Now, everyone has two genes for each trait, one from Mom and one from Dad. So people who have the gene combination BB or Bb have brown eyes, because their cells are making at least some brown pigment. Only people who have genes bb have blue eyes. (This is a simplification, but it works for our purposes.) Suppose that the two parents have:

Man = Bb

Woman = Bb

Their child receives one gene from each parent, and therefore could be BB, Bb, or bb. So you see that under these circumstances, they could easily have a blue-eyed baby!

Answer provided by Dr. Universe
related questions

Share This Site

Word of the Day

lionize: to treat (a person) as a celebrity.

Born on this day

October 26, 2016

1879 - Leon Trotsky
1914 - Jackie Coogan
1925 - Paul Daneman
1942 - Bob Hoskins
1947 - Hilary Clinton
1947 - Jaclyn Smith
1952 - Andrew Motion
1971 - Audley Harrison
1973 - Austin Healey
www.Bridal-Shower-Games.com |Baby Shower Games | www.TwitterBackgrounds.org