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It allows them to investigate traits and deviations in a broad testfield, while knowing how related the samples are.
==LinksSee also==*{{bugs|8919}} Haplogroup feature?*[http://gramps.1791082.n4.nabble.com/Event-for-Y-DNA-data-td1812521.html gramps archive 2008 thread]
*[http://en.wikipedia.org/wiki/Genealogical_DNA_test Wikipedia: Genealogical Dna test]
[[Category:Genealogy]]