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Genetics question I was pondering?

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I was wondering, If you have a set of identical twins ( males) and they marry the same set of identical twins ( females) and both couples have a boy, Would the cousins ( The boys) be genitically brothers? Would they look identical?

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  1. No, because the split of genes in each of the fathers and each of the mothers is random.

    They will share characteristics and may look similar, but will not be identical.


  2. Genetically, they would be comparable to brothers. That is, they would share, on average, 50% of their DNA.

    They would not look identical. They would look as similar (or dissimilar) as 2 brothers.
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