Do Now: Why do people have different shades/colors of skin?

People have different skin colors mainly because their melanocytes produce different amount and kinds of melanin. The genetic mechanism behind human skin color is mainly regulated by the enzyme tyrosinase, which creates the color of the skin, eyes, and hair shades.

Explanation:

People have different skin colors mainly because their melanocytes produce different amount and kinds of melanin.

the answer would be 2, if crossing over doesn’t occur 2 out of 4 of the daughter cells will have that allele.

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the correct answer is d