Article on CeCe's site about X inheritance: http://www.thegeneticgenealogist.com/2008/12/21/unlocking-the-genealogical-secrets-of-the-x-chromosome One thing to keep in mind: a man has only one X chromosome. He will appear to match his mother 100% on her X, but, due to recombination, it may be part of her paternal of X and part of her maternal X - and you can't determine which very easily. I'm not sure what a fully sequenced X result would tell you - someone with expertise would need to answer that.

If you are lucky enough to have maternal grandmother and grandchild results in 23andMe, you can see exactly how the X has recombined. One of my daughters got an X intact from her maternal grandmother, while the other got a recombined X (part from my mother-in-law and part from my deceased father-in-law). Of course that does not tell us if the intact X came from my mother-in-law's father or from her mother, but one might be able to determine this if some of my mother-in-law's cousins on each side were sequenced (or if we got lucky with a single cousin). On 10/14/2015 8:15 PM, Brooks Family via wrote: > Article on CeCe's site about X inheritance: > http://www.thegeneticgenealogist.com/2008/12/21/unlocking-the-genealogical-secrets-of-the-x-chromosome > > One thing to keep in mind: a man has only one X chromosome. He will > appear to match his mother 100% on her X, but, due to recombination, it > may be part of her paternal of X and part of her maternal X - and you > can't determine which very easily. I'm not sure what a fully sequenced > X result would tell you - someone with expertise would need to answer that. > > ------------------------------- > 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 > . > >

Another possibility for seeing who you inherited your X from is ancestry composition. Since my brother and I have one Ashkenazi Jewish grandparent we can see which maternal grandparent gave us which bits of X. Shown in my post about the X http://blog.kittycooper.com/2014/01/what-does-shared-x-dna-really-mean/ On Wednesday, October 14, 2015, Philip Ritter via < genealogy-dna@rootsweb.com> wrote: > If you are lucky enough to have maternal grandmother and grandchild > results in 23andMe, you can see exactly how the X has recombined. One > of my daughters got an X intact from her maternal grandmother, while the > other got a recombined X (part from my mother-in-law and part from my > deceased father-in-law). Of course that does not tell us if the intact > X came from my mother-in-law's father or from her mother, but one might > be able to determine this if some of my mother-in-law's cousins on each > side were sequenced (or if we got lucky with a single cousin). > > On 10/14/2015 8:15 PM, Brooks Family via wrote: > > Article on CeCe's site about X inheritance: > > > http://www.thegeneticgenealogist.com/2008/12/21/unlocking-the-genealogical-secrets-of-the-x-chromosome > > > > One thing to keep in mind: a man has only one X chromosome. He will > > appear to match his mother 100% on her X, but, due to recombination, it > > may be part of her paternal of X and part of her maternal X - and you > > can't determine which very easily. I'm not sure what a fully sequenced > > X result would tell you - someone with expertise would need to answer > that. > > > > ------------------------------- > > To unsubscribe from the list, please send an email to > GENEALOGY-DNA-request@rootsweb.com <javascript:;> 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 <javascript:;> with the word > 'unsubscribe' without the quotes in the subject and the body of the message > -- --------------------------------------------------------------- Kitty Munson Cooper, web developer,programmer, San Diego,CA genetic genealogy blog at http://blog.kittycooper.com/ family history and genealogy at http://kittymunson.com