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Old 9th March 2018, 03:51 PM
NCroots NCroots is offline
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Join Date: Feb 2015
Location: North Carolina
Posts: 201
Cousins with different y-haplogroups

I have a 2nd cousin whose y-haplogroup is R-L51. We both have a 4th cousin whose y-haplogroup is R-P312. We all share the same 3rd great-grandfather (this is on my mother's side, so my y-haplogroup is irrelevant). Shouldn't my 2nd cousin & 4th cousin have the exact same haplogroup? Does this indicate a NPE?
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