How are green eyes a genetic mutation?

You received two genes for an eye color, one gene from each parent, and whichever was the dominant gene would express itself. Therefore two brown genes would obviously express itself as brown. A brown gene and a blue or green gene would express itself as brown. read more

You received two genes for an eye color, one gene from each parent, and whichever was the dominant gene would express itself. Therefore two brown genes would obviously express itself as brown. A brown gene and a blue or green gene would express itself as brown. A green gene and a blue gene would express itself as green. read more

If two parents only carried genes for green eyes and had a child with blue eyes that would also be a mutation. A mutation is a change in the genetic code meaning that a child inherits genes that are different from either of its parents. read more

Blue eyes aren’t exactly rare! But mutations don’t have to be rare--this one now appears in so much of the population that it's considered a polymorph. But really, blue eyes are the result of a pretty recent mutation. You know, 10,000 years ago. Practically yesterday. read more