No, You Don’t Really Have 7,900 4th Cousins: Some DNA Basics for Those With Jewish Heritage
Jennifer Mendelsohn
705

I’m glad more people are trying to educate others about the largest segment, something often overlooked. I know that dnaadoption.com stressed 20cM or maybe it was 25cM largest segment. I stress to Polynesians 30cM, although I’ve seen 2C1R in my family with largest segment about 24cM. But for eastern Polynesians, it’s easy to share more than 200cM with a lot of others, so the largest segment size is key. RARELY do we have people go higher than 20cM for the largest segment.

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