Then, yes, person Y matches your dad on his opposing chromosome 2. That means that if the identified common ancestor is on his paternal side, then this match shares an ancestor with him on his maternal side or vice versa. CeCe Sent from my BlackBerry 10 smartphone. From: AGilchrest@aol.com Sent: Wednesday, September 25, 2013 9:14 PM To: autosomal-dna@rootsweb.com Reply To: autosomal-dna@rootsweb.com Subject: Re: [AUTOSOMAL-DNA] Recombination question CeCe, Yes but not on Chromosome 2. My father and I both match person X on chromosome 22 my father with cM 14.05 total SNP 2486 start position 25707796 stop position 33869897. Mine is cM 11.24 total SNP 1986 start position 26430759 stop position 33869897. Ann G. In a message dated 25-Sep-13 20:43:05 Pacific Daylight Time, cecemoore@hotmail.com writes: Ann,Do you match person X? CeCe Moore www.yourgeneticgenealogist.com > From: AGilchrest@aol.com > Date: Wed, 25 Sep 2013 23:32:10 -0400 > To: autosomal-dna@rootsweb.com > Subject: [AUTOSOMAL-DNA] Recombination question > > > Hello > My father has a segment on chromosome 2 that is 17.09 cM total SNP 5500 > start position 47680185 end position 67921093 which matches person X. The > common ancestor couple has been identified. My father descends from one of the > couples sons, person X descends from another son. My father and person X > are third cousins. > My father and I both match person Y on a segment that is within the above > segment. cM 9.17, total SNPs 3500. Start position 49442161 end position > 6179229. > Person X and person Y are not in common. My assumption here is that the > shorter segment is part of the other half of the pair of chromosomes. Can I > make any other hypothesizes? Such as who this segment may belong to? Or > does recombination make this impossible? > 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