if you look at mtDNA lineages you will find that somewhere between 70 and 90 per cent of people are descendants of the First Indians, with M lineages being the most popular. If you look at Y-chromosome lineages, though, the picture is different: First Indian descendants account for only 10 to 40 per cent of the haplogroups, depending on which population group you are considering. (This massive difference between the male and female lines of descent encapsulates the history of later migrations,
