The very day I posted my DNA results from Ancestry.com back in September, I got this:
“We’re always working to improve our DNA science and with more than 150 new regions, we’ve brought even more detail to your results.”
![](https://i0.wp.com/www.rogerogreen.com/wp-content/uploads/2018/12/DNA.201812.png?fit=676%2C1024&ssl=1)
“This update may connect you to
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So I’m part southern Bantu, which didn’t show up at all the first go round. I’m more from Benin/Togo. I’m more from Great Britain/Ireland, and there’s a potential familial lead in Munster, Ireland.
But I’m less Scandinavian, and less Nigerian. My Native American went from less than 1% to 1%, not exactly a telling statistic.
Meanwhile, they’ve added some additional information to the familial field. There’s some woman they’ve identified as my potential 2nd or 3rd cousin. “Shared DNA: 302 cM across 14 segments”. What the heck is a cM?
“In genetics, a centimorgan (abbreviated cM) or map unit (m.u.) is a unit for measuring genetic linkage. It is defined as the distance between chromosome positions (also termed loci or markers) for which the expected average number of intervening chromosomal crossovers in a single generation is 0.01. It is often used to infer distance along a chromosome. However, it is not a true physical distance.”
Got it. OK, don’t “got it.” What? BTW, the person I know IRL who is my second cousin- Shared DNA: 250 cM across 17 segments. Lillian Bell Archer, is our common ancestor, our great-grandmother. Lillian is my mother’s mother’s mother.
As my cousin once said, “This is addicting stuff.” Will I share my DNA with greatness?