Originally posted by: djheater
Originally posted by: J Heartless Slick
Originally posted by: miri
Originally posted by: Davegod75
yeah WTF are you talking about. I think brown is the dominant color if i'm not mistaken
Brown is dominant but since 2 blue eyed parents cannot have a brown eyed child and 2 brown eye parents can have a blue eyed child it seems to make brown eyes rarer.
Assuming eye color is determined by a single gene:
It's not Link
Eye color: The color of the iris. The genetics of eye color are complicated. Eye color is polygenic. It is determined by multiple genes. The eye color genes include EYCL1 (a green/blue eye color gene located on chromosome 19), EYCL2 (a brown eye color gene) and EYCL3 (a brown/blue eye color gene located on chromosome 15). There are clearly other genes that influence eye color. The once-held view that blue eye color is a simple recessive trait has been shown to be wrong. The genetics of eye color are so complex that almost any parent-child combination of eye colors can occur.
Freshman biology classes still teach the old way because it makes for an interesting and 'real life' example of how genetics work. But it's PATENTLY wrong.
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This is correct. And highly amusing. Because much like djheater pointed out, it is still being taught the wrong way, as is easily seen with the number of people who keep using this old theory. While the widely held idea on what genes causes eye color are easy for teaching people simple genetics, however it's wrong. Whats even more amazing (or fascinating) is that the current theories on which genes cause eye color, still cannot account for all the cases, like when both parents seeminly have the genes for creating just blue eyed offspring and yet produce a child ends with brown. Also they still cannot explain the cause for why one's eye color might change during their lifetime.
