From the moment of conception 46 chromosones with 30,000 genes combine to determine all of your physical characteristics: sex; facial features; body type; color of hair; eyes and skin.
The above is taken from here.
From the moment of conception 46 chromosones with 30,000 genes combine to determine all of your physical characteristics: sex; facial features; body type; color of hair; eyes and skin.
The above is taken from here.