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.