Why do Europeans have so many eye and hair colors?

eye color is pigmentation, or melanin, the lighter the levels of melanin the more colors become available because of how light reflects to the eyes. European have have basically undergoing a process of demelanation for a few thousand years because of the climate.

 

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it all depends on who is making them at the factory.

 

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Northern climate selected for decreased pigmentation which left room for variety in colors. When you're chuck full of melanin, the only color available is brown.

 

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Perhaps hair dye and colored contact lenses?

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Far less inbreading then other races.

 

I believe that the brown eye allele is dominant. This would result in a dominant phenotype, lessening the phenotypic variation. This does not mean the genotypic variation is less.

In Europe the recessive variation because merely visible due to the lack of the dominant alleles.

Hence there is not necessarily more genetic variation in Europe. Only phenotypic. And moreover, a phenotypic variation that is not really adaptive.


Sorry to be scientific about it. I know this is not the place.

 

How would you suggest this occurs?

I'm trying :bawl:

 

The more a group of being's inbreed the more they will look alike.

The less a group of being's inbreed the less they will look alike.

Why the "infraction" for pointing this out?




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http://www.sciforums.com/showthread.php?t=64638

Infraction for trolling and meaningless post content: 3 points

 

Thread closed due to trolling; genuine posters may contact me by PM to reopen the thread for a scientific discussion