Genealogy and the Y Chromosome
Y-DNA has become one of the most important items in the genealogist's toolkit. Unlike the other DNA types, it's prefect for surname studies. It's true that only men can test, but women can test male relatives. Join and learn the methodology.
Propriétaire: SystemLeaders: Michael-Cooley, SystemCréé sur January 25, 202184 membresVie privée: Public
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