ToF1y4U ToF1y4U

03-03-2021
Biology

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Why no two siblings have the exactly the same combination of random fertilization

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Аноним Аноним

03-03-2021

Answer:

brothers and sisters don't look exactly alike because everyone (including parents) actually has two copies of most of their genes. And these copies can be different. Parents pass one of their two copies of each of their genes to their kids.

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