#genealogists — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #genealogists, aggregated by home.social.
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All right, #genealogists and #geneticists, a question. I’m doing #genealogy and am wondering, what are the odds that a second cousin once removed shares only 39 cM with a person? (The cousin’s kids also seem to share between 21 and 36, which isn’t weird as chunks of #DNA can be inherited…but.) 39 seems low and Ancestry pegs the cousin as 4th-6th cousin. I’m wondering how likely it is that they are a HALF-2nd cousin 1x removed. ISOGG gives avg 122 cM (14-352 range) for 2C1R, 66 (0-190) for half