Genes for red hair and blond hair and for light-colored eyes are recessive. You need to have the right combination of two different types of melanin.īrown is the dominant gene. Red hair is more a causation of genetics, however. Think Prince Charles (now King) and princess Diana. Hazel is the next darker shade.Ī brown-haired parent matched with a blond-haired parent can get a red-haired child. The more melanin, the darker type of color you will see. Blue-eyed people lack melanin in their iris, so their eyes look blue to us. Eye color is a little more complicated because it involves the amount of color saturation in the iris. One brown eyed parent matched with a blue eyed parent can produce children with green or hazel eyes. Two people with brown hair and brown eyes can, albeit rarely, get a blonde haired, blue eyed, child, if both parents had a blond and blue-eyed ancestor. That's how it works in real life, as well.
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