LOL
I like this part:
"Targett, an only child who has no children, was still coming to terms with the idea of having a Stone Age man as a relative.
But his wife, Catherine, said, "Maybe this explains why he likes his steaks rare."
Now..after 9,000 years..the family tree ends. This man owes it to Cheddar Man to marry and breed..lol
opps..on reread i see he is married. Bummer.
If he does, or doesn't, the line dies with him. It would have to continue through his female maternal cousins. Mitochondrial DNA is completely inherited from the mother. This is because it's not in the nucleus of the cell, where all that sexual stuff goes on, but rather out in the mitochondria, which are present in the ovum before it's ever fertilized, and to which the sperm does not contribute anything.