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    1. [AUTOSOMAL-DNA] First cousins once removed marrying amount of DNA effecting relationships.
    2. Ann C Gilchrest
    3. I am working with an adoptee. He has a match I will call Edward. The adoptee and Edward share 1545 cM's across 70 segments at Ancestry. Edwards grandparents were 1C1R. Due do ages and several other pieces of evidence I suspect Edward is the adoptees uncle and that the 70 segments are due to Edward's grandparents being 1C1R. I would expect to see between 1349 and 2175 cMs between the adoptee and Edward. Is this a reasonable hypothesis? Thanks, Ann Gilchrest

    03/01/2019 07:46:24
    1. [AUTOSOMAL-DNA] Re: First cousins once removed marrying amount of DNA effecting relationships.
    2. Ann C Gilchrest
    3. Tim, I haven't found that to be the case back at least 5 generations. Ann -----Original Message----- From: TIM JANZEN <[email protected]> Sent: 01 March, 2019 21:15 To: Ann C Gilchrest <[email protected]>; [email protected] Subject: RE: [AUTOSOMAL-DNA] First cousins once removed marrying amount of DNA effecting relationships. Dear Ann, The fact that Edward's grandparents are 1C1R removed doesn't change the expected amount of shared DNA between Edward and the adoptee. The only complication would be if the adoptee's other parent was closely related in some way to Edward. Sincerely, Tim > On March 1, 2019 at 9:10 PM Ann C Gilchrest <[email protected]> wrote: > > > Thank you, Tim. I wasn't sure what effect 'Edwards' grandparents being 1C1R would have other than perhaps a higher than average amount of shared DNA. > Ann

    03/01/2019 10:18:46
    1. [AUTOSOMAL-DNA] Re: First cousins once removed marrying amount of DNA effecting relationships.
    2. TIM JANZEN
    3. Dear Ann, Based on the amount of shared cMs, an uncle/nephew relationship is very reasonable. Don't get hung up on the fact that they share 70 segments per Ancestry.com. They probably don't actually share that many segments if you were to compare them at GEDmatch. Keep in mind that because Ancestry.com's phasing isn't perfect it is reasonably common to see situations where a single shared segment is broken into 2 or even 3 segments when reported by Ancestry.com. Sincerely, Tim Janzen > On March 1, 2019 at 6:46 PM Ann C Gilchrest via AUTOSOMAL-DNA <[email protected]> wrote: > > > > > I am working with an adoptee. He has a match I will call Edward. The adoptee > and Edward share 1545 cM's across 70 segments at Ancestry. Edwards > grandparents were 1C1R. Due do ages and several other pieces of evidence I > suspect Edward is the adoptees uncle and that the 70 segments are due to > Edward's grandparents being 1C1R. I would expect to see between 1349 and > 2175 cMs between the adoptee and Edward. Is this a reasonable hypothesis? > > > > Thanks, > > Ann Gilchrest

    03/01/2019 10:03:59
    1. [AUTOSOMAL-DNA] Re: First cousins once removed marrying amount of DNA effecting relationships.
    2. Ann C Gilchrest
    3. Thank you, Tim. I wasn't sure what effect 'Edwards' grandparents being 1C1R would have other than perhaps a higher than average amount of shared DNA. Ann -----Original Message----- From: TIM JANZEN <[email protected]> Sent: 01 March, 2019 21:04 To: [email protected] Cc: Ann C Gilchrest <[email protected]> Subject: Re: [AUTOSOMAL-DNA] First cousins once removed marrying amount of DNA effecting relationships. Dear Ann, Based on the amount of shared cMs, an uncle/nephew relationship is very reasonable. Don't get hung up on the fact that they share 70 segments per Ancestry.com. They probably don't actually share that many segments if you were to compare them at GEDmatch. Keep in mind that because Ancestry.com's phasing isn't perfect it is reasonably common to see situations where a single shared segment is broken into 2 or even 3 segments when reported by Ancestry.com. Sincerely, Tim Janzen > On March 1, 2019 at 6:46 PM Ann C Gilchrest via AUTOSOMAL-DNA <[email protected]> wrote: > > > > > I am working with an adoptee. He has a match I will call Edward. The > adoptee and Edward share 1545 cM's across 70 segments at Ancestry. > Edwards grandparents were 1C1R. Due do ages and several other pieces > of evidence I suspect Edward is the adoptees uncle and that the 70 > segments are due to Edward's grandparents being 1C1R. I would expect > to see between 1349 and > 2175 cMs between the adoptee and Edward. Is this a reasonable hypothesis? > > > > Thanks, > > Ann Gilchrest

    03/01/2019 10:10:47
    1. [AUTOSOMAL-DNA] Re: First cousins once removed marrying amount of DNA effecting relationships.
    2. TIM JANZEN
    3. Dear Ann, The fact that Edward's grandparents are 1C1R removed doesn't change the expected amount of shared DNA between Edward and the adoptee. The only complication would be if the adoptee's other parent was closely related in some way to Edward. Sincerely, Tim > On March 1, 2019 at 9:10 PM Ann C Gilchrest <[email protected]> wrote: > > > Thank you, Tim. I wasn't sure what effect 'Edwards' grandparents being 1C1R would have other than perhaps a higher than average amount of shared DNA. > Ann

    03/01/2019 10:15:04