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  • Generational distances

    I have matched another member with all 37 markers with no mutational difference, plus we share the same surname. If FTDNA indicates a common ancestor within say for example 10 generations, does that mean 10 generations father to son from myself ? Please excuse my ignorance in this question as I am new at this. Thank you

  • #2
    Originally posted by Harley Sutherlan View Post
    I have matched another member with all 37 markers with no mutational difference, plus we share the same surname. If FTDNA indicates a common ancestor within say for example 10 generations, does that mean 10 generations father to son from myself ? Please excuse my ignorance in this question as I am new at this. Thank you
    Short answer: yes. It means there's a high probability you have a common ancestor within several generations. According to the FAQ, a 37/37 match between two men with the same surname generally means there's a 50% chance you share a common ancestor within 5 generations, and 95% within 8 generations.

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    • #3
      Originally posted by Harley Sutherlan View Post
      I have matched another member with all 37 markers with no mutational difference, plus we share the same surname. If FTDNA indicates a common ancestor within say for example 10 generations, does that mean 10 generations father to son from myself ? Please excuse my ignorance in this question as I am new at this. Thank you
      You apparently have a strong match, and congratulations, but it could be worth keeping in mind that mutation can work two ways, that two identical markers could eventually mutate into being non-identical markers, and, that two non-identical markers could eventually mutate into being identical markers. Yes, perhaps it is intuitively natural to first consider divergence, but convergence is possible, too.

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