Skip to comments.How Accurate Are Online DNA Tests?
Posted on 10/16/2018 6:27:59 AM PDT by Drango
Blah, blah, blah...DNA stuff...~snip
(This is in the conclusion)
But to say that you are 20 percent Irish, 4 percent Native American or 12 percent Scandinavian is fun, trivial and has very little scientific meaning.
(Excerpt) Read more at scientificamerican.com ...
It ranks right up there with an electronic version of the OUIJA Board.
SA is now a Gorebal Warning fish wrap.
My purported ancestry initially included traces 1-3% North African and European Jewish
Recently the new and improved data eliminated both of those.
How Accurate is Scientific American?
If you can find distant cousins and the tree to prove it you have much more science than the total science behind global warming.
the gold standard is Nature and other journals - SA is a political but scientific global climate change joke right up there with Nat Geo.
I think it is “Scientific American,” not “Scientific America”...(?)
Ancestry DNA tests are fudged and not at all accurate or truthful.
I posted this yesterday:
Here’s a fun fact yet to be brought up: These “results” will change over time even on a specific DNA ID site. ancestry.com specifically makes a big deal about how a specific person’s results from some number of months ago get “updated” and presumably more accurate because of more samples and customers since then.
I am looking at a particular set of “results” there at the moment. I see that five sources of DNA, one of those sources a full seven percent, are “no longer in estimate,” which was made roughly seven months ago.
So any talk of ancestry of 1/64 (1.5%) being statistically significant, far above any margin of error, unimpeachable, proof positive of ancestry, etc., is simply mumbo jumbo.
I read an article somewhere not that long ago saying the folks running these $DNA$ find-your-roots companies (they do some nice advertisements with people traveling to exotic places to visit their ‘ancestors’) throw in various results that are not related to the actual DNA. Those paying money for results want results that are “interesting” and they’ll give you that.
Despite all the hoopla, such as identifying a killer in California, the science of DNA data mining is in its infancy. Sloppy procedures, misreading, and the like aside, 20 years from now, the information gleaned will be fantastic.
They are pretty accurate in my eyes - they detected Elizabeth Warren was 100% pure idiot.
For European ancestry, I’ve found it to be fairly accurate based on my family’s genealogical research. My siblings and I used ancestry.com’s databases, which recently updated and refined their results due to their reference populations growing from ~3,000 samples to ~16,000.
According to them, I’m 43% Irish/Scot, 37% French, 14% Spanish and 6% Italian, which is just about exactly correct based on my immigrant background.
Yes, I’m a European mutt... :-)
Yeh, I used to read SA when the science part was more important than the political.
This article IS worth reading, since I find no hint of bias influencing science.
My good friend from West Virginia has a maternal grandmother who was Cherokee. But the DNA test said that my friend had no Native blood. That could only be true if either she or her mother were adopted.
My grandfather (also from WV) was 1/2 Cherokee, but I’ve no desire to have my DNA tested. I believe something nefarious will come of it at some point.
All of these tests are limited in what they can find. The Y-Chromosome and Mitochondrial DNA tests are good and they may be good at finding very close relatives and identifying lost ones, but the percentages of the nationalities of ancestors is just a rough guess.
I’m pretty sure thanks to these databases now they can identify 60% of the public with DNA samples already provided.
23 and me doesn’t make mhm it’s money from telling you your DNA, it does from selling it to the Government and Corporations.
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