Awhile back I participated in the National Geographic Genome Project. I did a simple cheek swab for DNA and sent it to the project. My Y chromosome results identify me as a member of halo group R1b, a lineage defined by a genetic marker called M343. This halo group is the final destination of a genetic journey that began some 60,000 years ago with the ancient y chromosome marker called 168 originating in Eastern Africa. Women can be traced back further, up to 200,000 years via their mitochorial DNA.
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