Hello, My mom and I match person A on Chromosome 6, me 9.79 cM, total SNP's 2470, mom 9.55 cM total SNPs 2370 [Yes mine is larger, end numbers are the same] & on Chromosome 8, 10.83 cM, total SNP 2056. Start & stop numbers are the same for Mom & I. Mom and I descend from Martha. Person A descends from Martha's brother Samuel and his wife Priscilla. Samuel & Priscilla are 1st cousins. Samuel, Priscilla and Martha's grandparents are John & Elizabeth. Should both these segments map to the cousins or the grandparents children? Am I correct in assuming that Person A could have received the matching segment from either Samuel or Priscilla? Thank you, Ann G

Hi Ann, To definitively identify the common ancestors, you must review the pedigrees of other matches with whom you, your mother, and Person A share this particular segment. In your case, Person A could have inherited the segment from either Samuel or Priscilla via the shared grandparents, or Person A could have inherited the segment from Samuel via the *other* parent he shared with Martha, the parent who was not a biological uncle/aunt of Priscilla. Combing through the pedigrees of everyone sharing this segment will help bring the ancestral source of this segment into focus. I hope this helps. Thank you for bringing this excellent case to us. I look forward to hearing from you. Very Respectfully, Shannon On Fri, Sep 27, 2013 at 2:59 PM, <AGilchrest@aol.com> wrote: > > Hello, > My mom and I match person A on Chromosome 6, me 9.79 cM, total SNP's 2470, > mom 9.55 cM total SNPs 2370 [Yes mine is larger, end numbers are the same] > & on Chromosome 8, 10.83 cM, total SNP 2056. Start & stop numbers are the > same for Mom & I. > Mom and I descend from Martha. Person A descends from Martha's brother > Samuel and his wife Priscilla. Samuel & Priscilla are 1st cousins. Samuel, > Priscilla and Martha's grandparents are John & Elizabeth. > Should both these segments map to the cousins or the grandparents > children? Am I correct in assuming that Person A could have received the > matching > segment from either Samuel or Priscilla? > Thank you, > Ann G > > > ______________________________ > For answers to Frequently Asked Questions about mailing lists, please see: > http://dgmweb.net/MailingListFAQs.html > > > ------------------------------- > To unsubscribe from the list, please send an email to > AUTOSOMAL-DNA-request@rootsweb.com with the word 'unsubscribe' without > the quotes in the subject and the body of the message > -- Mr. Shannon S. Christmas Chief Market Advisor | Design Strategist The Christmas Collective <http://thechristmascollective.com/> Strategic Real Estate and Land Use Solutions New York, NY | Washington, DC P: 212.433.0586 | 202.618.1687 F: 1.888.788.5984 shannon.christmas@thechristmascollective.com http://www.linkedin.com/in/shannonchristmas/