|MadSci Network: Genetics|
I can't help you with exact percentages, but I can explain a few things about eye color you might want to consider. Many scientists believe that there is a natural degree of variation in all ethnic groups, but this is not so in my opinion. Variation of phenotype is variation of genotype, which means that an Asian or African with eyes other than brown or black is not 100% Asian or African. Blue, green and other light-colored eyes, it is believed, are part of the caucasian adaptation to cold-weather living. Blue and green eyes tend to have better night vision and seem to see better in snowy, mountainous regions as opposed to brown or black. Populations interbreed, which explains the eye color variations. So basically, if you have an African (Negroid) with other than black or brown eyes, then there is a non-African in the woodpile. Indians from India are actually caucasian, so they may have more color variations, owing to population shifts over the millenia.
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