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Add profiles that are known or strongly believed to belong to R-Z12 paternal Haplogroup (Y-DNA). Those profiles would be direct male biological ancestors and descendants of persons who’ve taken a DNA test, determining R-Z12 (Y-DNA). Those who personally tested positive for belonging to the R-Z12 (Y-DNA) living Collaborative project X&Y DNA. We all typically inherit 50% of our DNA from our ...