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  • KCH
    replied
    Originally posted by spruithean View Post

    This doesn't really guarantee anything. I know of people who've found an ancestor to have been adopted, or the product of a NPE where the father that adopted them was declared on the birth certificate as the father.

    As suggested you could test older generations if possible, or look at various matches to see if any matches fit in the tree for one or both of the kits as suggested by ech124.
    Seconding this. Birth certificates show who the legal parents are. Their purpose is NOT to show who the biological parents are, but who the legal parents are. Usually both legal parents are also the biological parents, but sometimes one isn't (the most common reason for that is "non-paternal events," i.e. infidelity by or rape of the mother), and sometimes neither of them are (adoption or babies switched at birth).

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  • Jim Barrett
    replied
    Originally posted by PaMarn View Post
    Sorry, I should have made clear I uploaded both kits to GedMatch. That's where I get the 'No shared DNA' message. On reflection, my grandmother having been adopted is out of the question as I have her birth certificate.
    Birth certificates lie. I have twin brothers. Their birth certificates say their birth parents are the same as my parents, BUT they were adopted. I was born after they were adopted and my birth certificate was altered after being issued to say I am my mother's third child. You can see the 'white out' on my certificate. At least in Texas, it is common for the birth certificate of adopted children to show the adoptive parents as the birth parents if the adoption occurred soon after birth.

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  • Fern
    replied
    Originally posted by PaMarn View Post
    .... We both have elder sisters, neither of whom have yet been tested.
    PaMarn - I would test both sisters (yours and your 2C's) if they're willing.

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  • bartarl260
    replied
    Originally posted by spruithean View Post

    Yes, they could be, although with 3rd cousins at various levels of removal the chances for smaller shared segments to no shared segments increases. Do you know if those 11 shared kits share known ancestors with you and your second cousin?
    2nd Cousin or closer is the ideal, but may require at least 2 or three others to test in order to reliably "triangulate."

    3rd and even 4th Cousins at additional removes can also potentially be used, but the number of people who would need to test(on different "lines" in an ideal situation) starts to increase considerably as the odds against any one test matching BOTH(or even just one) people become increasingly bad. (Or the matter of the odds of being related by other means and matching that way)

    The wider the net that gets used, the more chances that someone is going to match one or more other people within the net, then you can start working out how those clusters fit together with other clusters. (Basically the theory behind DNA Circles on Ancestry, even if bad genealogical research on the part of others often generates less than ideal outcomes for that)
    Last edited by bartarl260; 7 May 2019, 08:16 AM.

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  • spruithean
    replied
    Originally posted by PaMarn View Post
    We have a common third cousin and another third cousin twice revoved. Would they be worth testing?
    Yes, they could be, although with 3rd cousins at various levels of removal the chances for smaller shared segments to no shared segments increases. Do you know if those 11 shared kits share known ancestors with you and your second cousin?

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  • PaMarn
    replied
    We have a common third cousin and another third cousin twice revoved. Would they be worth testing?

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  • Emona
    replied
    No X-match was expected. X does not travel from paternal grandfather to father.
    (of the supposed 2nd cousin; remember the original explanation: "Her paternal grandfather and my maternal grandmother were siblings.")

    Testing a third person would probably give a good answer, if you really want to know and accept the truth, whatever it is.

    A paternal 1st cousin of the 2nd cousin would be my first choice.

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  • PaMarn
    replied
    No match on X comparison either.

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  • Biblioteque
    replied
    In Gedmatch Genesis, look to the right of your screen:
    Under DNA Applications, the 4th down is:
    One-to-One X DNA Comparisons

    There is an answer, it just has to be found..............
    Last edited by Biblioteque; 3 May 2019, 02:44 PM.

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  • PaMarn
    replied
    Thanks for your suggestions. I'm not sure how to do a one-to-one on the X Bibilotheque. Can you explain.

    KATM. My Heritage says 'no matches'

    prairielad. Unfortunate my s. cousing and I are both in our seventies. There are no living persons of are older generations. We both have elder sisters, neither of whom have yet been tested.

    What I did try was a GedMatch search for People who match both of our kits, and it threw up 11 kits, all in 5.1 and 5.2 Gen for both of us. Should I be encouraged by this?



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  • spruithean
    replied
    Originally posted by PaMarn View Post
    Sorry, I should have made clear I uploaded both kits to GedMatch. That's where I get the 'No shared DNA' message. On reflection, my grandmother having been adopted is out of the question as I have her birth certificate.
    This doesn't really guarantee anything. I know of people who've found an ancestor to have been adopted, or the product of a NPE where the father that adopted them was declared on the birth certificate as the father.

    As suggested you could test older generations if possible, or look at various matches to see if any matches fit in the tree for one or both of the kits as suggested by ech124.

    Leave a comment:


  • bartarl260
    replied
    Originally posted by prairielad View Post
    Are either of you able to test your parent or Grandparent associated with this line?
    Or a Sibling of your parent?

    If your Grandparents were only half siblings (shared mother), as half 2C, the two of you have a small chance of not sharing any DNA.
    Testing someone from an earlier generation may shed light on matter.
    This is what I'm thinking too, according to the SharedCM project, 2C1R is the closest point where a relative may not match. A 2nd cousin being a "half cousin" would put things past the 2C1R equivalence. If nobody from the older generation is available for testing, testing additional siblings on both sides would be another option. If you're half-2nd Cousins, it isn't very likely that everyone is going to fail to match against the same person(s).

    IE if you have 2 other siblings, and none of them match your 2nd cousin, but you do "properly match" against each other, then the 2nd cousin probably isn't related the way you thought she was. This is why they encourage testing "wider" when deeper(older generations) isn't available.

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  • KATM
    replied
    PaMarn, since you and your 2nd cousin have both tested at MyHeritage, how does the comparison show there? Are you finding her in your match list, and is she finding you in hers? If so, what are the estimated relationships shown? What does MyHeritage's Chromosome Browser tool show if you compare with her there?

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  • prairielad
    replied
    Are either of you able to test your parent or Grandparent associated with this line?
    Or a Sibling of your parent?

    If your Grandparents were only half siblings (shared mother), as half 2C, the two of you have a small chance of not sharing any DNA.
    Testing someone from an earlier generation may shed light on matter.

    Leave a comment:


  • Biblioteque
    replied
    As a curiosity, at Gedmatch, do a one-to-one on the X to see if there are any results there; and please let us know.

    Leave a comment:

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