When a light skinned person and a dark skinned person have a child, that child is likely to have a mix of those skin tones, resulting in a caramel hue. However, when someone with blond hair and someone with black hair have a child, the child would either have blond or black hair rather than a mix of the two producing brown.
And where do eye colour genes fall in here?
In: Biology
Genetics are half from one parent and half from the other. Some genes are stronger than others which is why they show up physically.
Even if a gene is present it might not physically show until several generations later. These are sneaky and usually show up when they meet another gene just like them (in this case two wrongs do make a right).
Usually darker pigments in skin will dilute lighter ones. Brown eyes are dominant to most other colors.
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