Ultimate BBEG - Millions of offspring?

[Merkuri]

Surely Genghis Khan got that Y chromosome from his father, and would have shared it with all his brothers? And, of course, it would have come from Genghis' paternal grandfather, and also be shared by his cousins, and so on. So, while there may be 16M relatives of GK around, it doesn't follow that they are necessarily descendants of his.

Perhaps, but having that many identical Y chromosomes in a population is highly unlikely. There are natural mutations that happen in chromosomes when passed on from father to son, so the descendents of two brothers will not likely still have the same Y chromosome after that many generations.

The fact that there are so many that are identical points to one individual who had an extreme mating advantage. Historically, the only person who fits that bill is Genghis. It's possible that they are descendants of someone else, but having Khan as an ancestor is much more likely.

 

[pawsplay]

The fact that there are so many that are identical points to one individual who had an extreme mating advantage. Historically, the only person who fits that bill is Genghis. It's possible that they are descendants of someone else, but having Khan as an ancestor is much more likely.

My money would be on Khan, or a time-traveling Captain Kirk.