Barbara will agree with me. DNA is only as good as its starting information (just like computers). We simply do not know where the results of X=1 come from...then again, I can, I suppose to defer to my family that consists of Clinical Pathologists, Endocrinologists, as well as Oncologists (and one who is a research scientist over seas working with endangered species). "Heritage" testing is a far cry from that of a known genome that can "possibly" be linked to a genetic condition (ask Angelina Jolie).
The information known is SO limited that it is almost incomprehensible. But, humans like to hope on hope to know something, anything (part of the reason I did not finish Med School - but do work in Healthcare oddly).
But, if someone wants to get DNA testing to find out they are supposedly from Narnia...I hope they spent their life savings getting PowerBall on the way home from the post office mailing their SALIVA sample. What is even more fun is the "control of custody" as there IS NONE. You dont even have any real assurance that your sample is your sample...Simple N=1 test is for the same person to send in two samples and see if they get the same results. Oddly, they dont...then there are things like this...
Title:
Two DNA tests on same person, but different results
Summary:
Same person, Ancestry.com DNA test and National geographic DNA test yielded different results
Content:
Hello, If there is a better email to send this question to, please advise. I cannot find it on your website. I have already called Ancestry.com and they did not have any explanation for the significant difference of results between Ancestry.com and National Geographic DNA Geno 2.0 test. The test I had done with Ancestry.com did NOT show any of the 21% Northern European DNA that the Nat'l geographic study did. I think that’s a significant difference. Can you explain why the Ancestry.com DNA study does NOT show ANY Northern European DNA in my results? Does the Nat'l Geo DNA test go further back in genetic history than the Ancestry.com test? Which test do I trust? I am female. Ancestry.com DNA test showed: Europe 82% including Italy/Greece 80% West Asia 17% Africa <1% ____ National Geographic Geno 2.0 kit study showed: Mediterranean 57% Northern European 21% (“Northern European - people from the UK, Denmark, Finland, Russia and Germany...”) Southwest Asian 19% Which test do I trust? Thank you for your help.
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