Wednesday, July 29, 2009

Why do most people have brown hair and brown eyes?

I have red hair and blue eyes, and it seems like everyone around me has brown hair and brown eyes...either both or one or the other.



Why do most people have brown hair and brown eyes?

Most people in the world have black hair and brown eyes.



Why do most people have brown hair and brown eyes?

because the genes for brown eyes and hair are dominant



Why do most people have brown hair and brown eyes?

Because they are African or Asian or a mix of those two. Which far out number Caucasians.



Why do most people have brown hair and brown eyes?

ok first of all u must knw abt chromosomes .



this is called sex linked gene ...



XB - dominant allele 4 brown eyes



Xb - Recessive allele 4 blue eyes



so when crossing over happens btwn gametes.



ex : XBXb * XBY



it will produce XBXB - Brown eyes colour gal



XBXb - blue colour eyes gal



XbY - may be other eyes colour boy ...



ok this all called variation which inherit frm their parent ok...

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