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Is it possible for a black person to naturally have blue eyes?
I was talking with a teacher of mine about genetics and she said that true African descendants always have brown eyes. I told her that I've seen many African-Americans with blue eyes though! She suggested that both of the person's parents were not black (like one was black and the other was white/caucasian) if the eyes were any other color than brown. She also said that contacts change the eye color and that may be why I've noticed "so many" dark-skinned people with light colored eyes (and, yes, I know about contacts...just saying her point).
So, is it really possible for a dark person to have blue eyes or some other light colored eyes (like green)?
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One of my great friends who is african american (dark skinned) has naturally blue eyes. My other friend, who is mixed, has light brownish green eyes.
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It is possible for a very dark skinned person of African descent to have an eye colour other then brown, and the most likely reason for it is that they have ancestors who where not African.
In fact, to end up with blue eyes you would need to have Caucasian or another blue-eyed European race on both sides of your family, mother and father. Blue eyes are a recessive gene, whereas brown eyes are dominant. You get genes from both parents, and if one gives you the gene for blue eyes and one brown, you’ll have brown eyes because brown eyes trumps blue eyes. Both parents have to pass on the blue eyed gene (even if they are brown-eyed and that blue eye gene has just been lying dormant in them for generations) for their baby to have blue eyes.
It can also be a mutation, or part of medical condition, but those are both much more unlikely. The likeliest explanation is that some place back, even way back, in both parents’ genetic histories, there was a blue eyed person. Then, as unlikely as it might have been for the baby to be blue-eyed, the dice just got rolled that way, and the blue eyes came out on top.
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I think green is possible but I doubt blue is possible just because if you think back to Africa before it was colonized everyone had brown eyes. Like in China.
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