[neverdem]

Historical genetics itself was still a pioneering field, launched by the discovery that two sources of DNA in the human body, the Y chromosome that determines male sex and the mitochondria that aid cell metabolism, never change (barring rare mutations) in their transmission from fathers to sons and from mothers to children of both sexes.

Am I alone, or is that confusing? IMHO, he should have written:

All sons inherit their father's Y chromosome. All children inherit their mother's mitochondrial DNA.

[Alouette]

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