> ...it is matrilineal... Bear in mind they are counting mutations on the y-chromosome, which is based from father to son. Over a wide range of cultures men on

> ...it is matrilineal... Bear in mind they are counting mutations on the y-chromosome, which is based from father to son. Over a wide range of cultures men on average mate with women who are younder than them, so the time between generations by patrilineal descent will be greater than the time by matrilineal descent.