Phasing DNA. Pros and Cons.

I had my dad get an Autosomal test at ftDNA (whatever their merits or demerits, Family Tree DNA keeps your DNA sample for 25 years, so you can update testing anytime you want), and I have transferred that test to Gedmatch. His kit number is posted on Wikitree ( which is another genealogical resource you might find useful). But to repeat them here, Ysearch kit is MMB63. His autosomal kit on gedmatch is T141705. Anyone who has a gedmatch login can do ‘one to many’ comparisons with his gedmatch kit.

That said, with my Dad’s kit there, I can phase my own DNA kits, splitting them into a maternal and paternal side. Using these, I can now tell whether a DNA match is matching from the maternal side or paternal side. So, when trying to dig up dimly understood ancestors, this is quite valuable.

On the other hand, the admixture of my maternal side is a bit fanciful..


And the answer is, no I don’t believe it. The sanest of the admixtures so far seems to be 50% Scots/Irish/British, 30% Scandinavian, and 20% Southern Europe. That’s what I tend to believe, as of the moment.

And yes, they do warn you that phased data and admixture are not the best of ideas. Compare with my admixtures in previous posts.

5 thoughts on “Phasing DNA. Pros and Cons.

  1. I am so addicted to ancestry that it is pitiful . The dna is as addictive as method. Laughing .I have my dna on GEDMATCH as well. I found my father on ancestry and had no idea my father of 58 years was not my father . I saw names bunches I don’t know and I was stunned. After a paternity test on my 93 year old “father” came back zero percent match after my ancestry had already pointed me to my true father and my mother poping out his name with out me telling her . This was a kick in the heart and the gut. I can tell you to guard your heart when dealing with ancestry and dna and adoption searching. Not every story turns out to be a happy story and not every parent is a saint and truthful they were young once too just like we were. Just beware. DMJ


    • Well, the real shock for me was essentially 0% German autosomal DNA. For some reason I thought that our “Germanness” would come through. YDNA has been frustrating, though we found Ross though Dad’s Y DNA work.

      So for now, it’s find the male hapolgroup without spending $600 on a full Y (for now). I’m doiong my wife’s mitochondria (full) and I’m doing mitochondrial hypervariable regions. They’re not as good as Y studies, IMO.


      Liked by 1 person

      • I am guessing it is about what your seeking and how you interpret it. If it says Europeon, doesn’t that include Germany depending on what part of Europe it shows? I am a novice but I have learned life altering information


      • Germany is clearly part of Europe, but the Myers have been in the US a long time. The folks the male Myers married were predominantly from the British Isles, more likely Irish or Scots. The Scandinavian comes from the Scots Irish connection as Vikings, Jutes, Angles and Saxons settled in those islands. Southern Europe contributes significantly, through what get referred to as the “Black Irish”. It makes sense once you look at the facts. The German blood we did have is so diluted it is hard now to measure.

        That is less likely to be the case with the Y chromosome, but those studies are not complete.


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