1. 1.
    +1 -1
    It's genetic. That just happens to some people. Hair color is not determined by one gene but instead by a whole range of genes that interact with one another. It means that you probably have genes for all those different colors, it's just that "brown" won out on most of the rest of your body.

    Edit: asshole başlığı üstüme bıraktı amk
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