how mixed race people have a skin tone that is in between their parents’ skin tone, if Mendel’s law of dominance is true?
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They don’t.
If you look at multiple children of a mixed race couple you’ll find that there are only certain skin tones and that children can have any of these. Some children will be lighter skinned and some of the children darker skinned.
There are multiple genes and the combination will determine which skin tone a child gets.
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