[Jim Noble]

The Y chromosome data gives different information because conqueror population males usually rape and impregnate conquered population females and not vice versa.

For example, Indian Brahmins result from Euro-Persian males impregnating South Asian females-their marriage and family customs have highly conserved the Y chromosome DNA but not so the mt-DNA.

Y-DNA and mt-DNA would only give the same information if matings between invader males and native females were equally likely as matings between invader females and native males-which cannot possibly be true.

Interesting stuff.

[blam]

"Y-DNA and mt-DNA would only give the same information if matings between invader males and native females were equally likely as matings between invader females and native males-which cannot possibly be true."

So, unless both the Y-DNA and the mt-DNA are considered in any sample population, then you're not getting a true picture of that population? That would make The Seven Sisters/Daughters Of Eve stories BS, huh?