I recall seeing a Jewcovery :D Channel program where they were using mtDNA and Y-DNA tests in populations around the globe, in order to find a mitochondrial Eve and a Y chromosome Adam...    They ended up with an African Eve and Adam that supposedly were the ancestors of us all...    But since mtDNA and Y-DNA only tracks back a straight line of female and male ancestors respectively, an Eve and Adam would mean that every individual would have the same ancestry, which is not the case, we find different markers in the different races....    I remember another thread around here were a female poster that was a geneticist which participated in the Discovery Channel (or was it NatGeo :confused:) study said that the raw data showed that there were ancestors for every marker in different locations around the globe, more or less in the homelands of each race....     Of course after the PC makeup it had to conclude that we had the same ancestor since we are all equal... :rolleyes: