Mitochondria

What do genetic testing and genealogy have in common? The easy answer is that they're both used by people who are trying to find out who they are, in more ways than one. Another answer is that both tests can involve DNA sequence data. And that leads us to another question. If the sequence of my mitochondrial DNA is only two bases different from Cleopatra's, am I really a distant relative? And how do I really even know that my mitochondrial DNA is only two bases different in the first place? What does having a DNA sequence really mean? Students ... Read more

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