I share nothing on the X with my maternal grandmother. I have tested a first cousin, uncle and second cousin. All share at least some part of their X with each other. I share zero with any of them. I have inherited quite a bit of autosomal DNA from my maternal grandmother, including my entire chromosome 21 (which can be traced in its entirety to her 3rd great grandparents). The evidence suggests that my mother gave me her paternal X intact. On Thu, Oct 15, 2015 at 5:41 PM, Robert Paine via < genealogy-dna@rootsweb.com> wrote: > A mother-child will always share a full X-chromosome. The 196.1cM is the > size of the X-chromosome using Build 36 standard and the 182cM is using the > Build 37 Standard. > > RPaine > > -----Original Message----- > From: Rita Ruff via > Sent: Thursday, October 15, 2015 4:05 PM > To: Wjhonson ; genealogy-dna@rootsweb.com > Subject: Re: [DNA] X-dna: Son shares none with maternal grandmother > > My mother and I share 196.1cM on X at gedmatch, (23andme shows 182cM). > > > On Thursday, October 15, 2015 5:57 PM, Wjhonson <wjhonson@aol.com> > wrote: > > > How much do you share with your mother? > > > -----Original Message----- > From: Rita Ruff via <genealogy-dna@rootsweb.com> > To: GENEALOGY-DNA <GENEALOGY-DNA@rootsweb.com> > Sent: Thu, Oct 15, 2015 3:55 pm > Subject: [DNA] X-dna: Son shares none with maternal grandmother > > Hi- > I read the previous X Inheritance thread(very interesting) and decided to > check the X match between my son and my mother at 23andme. It was very > surprising to see they have no matching segment at all. At gedmatch, after > lowering the threshold to 1cM-100snps, their largest matching segment on X > was > 3.2cM-288snps. Total X match 16.8cMs. Does this seem unusual, and does > that > mean my son's X-matches are all from my dad's side? My son and I share > 196.1cM > on the X. > Rita > > ------------------------------- > To unsubscribe from the list, > please send an email to GENEALOGY-DNA-request@rootsweb.com with the word > 'unsubscribe' without the quotes in the subject and the body of the message > > > > ------------------------------- > To unsubscribe from the list, please send an email to > GENEALOGY-DNA-request@rootsweb.com with the word 'unsubscribe' without the > quotes in the subject and the body of the message > > > ------------------------------- > To unsubscribe from the list, please send an email to > GENEALOGY-DNA-request@rootsweb.com with the word 'unsubscribe' without > the quotes in the subject and the body of the message >