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

albatross: a seemingly inescapable moral or emotional burden, as of guilt or responsibility.

Born on this day

September 26, 2016

1887 - Sir Barnes Wallis
1888 - T.S Eliot
1898 - George Gershwin
1944 - Ann Robinson
1945 - Bryan Ferry
1948 - Olivia Newton-John
1957 - Linda Hamilton
1962 - Tracy Thorn
1981 - Serena Williams
www.Bridal-Shower-Games.com |Baby Shower Games | www.TwitterBackgrounds.org