R
rossum
Guest
There was a Mitochondrial Eve. However, she is not the only common ancestor. Her parents are also common ancestors, her grandparents, her great-grandparents and so on back until they were almost-but-not-quite human. There are a great many possible couples to pick from. M-Eve is just the most recent of a very large number of possible matrilineal ancestors.Since human genetics are crucial parts of our bodily systems, this system of mtDNA and Mitochondrial Eve can show that there might have been a common ancestor that we share through the female line (matrilineality).