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now.tufts.edu/articles/pulling-back-curtain-dna-ancestry-tests

Pulling Back the Curtain on DNA Ancestry Tests ... Tufts Now: How accurate are these tests when it comes to determining ethnicity and genealogy? Sheldon Krimsky: We don’t really know, because the companies selling these services—and there are close to 40 of them—don’t share their data, and their methods are not validated by an ...

www.medicaldaily.com/dna-ancestry-tests-are-meaningless-your-historical...

The individual's genetic data is compared to the DNA of people for whom there is specific information about ethnicity and geographic location, and different ancestry tests look at different types of DNA: Y chromosome DNA, which is inherited along the male line and only found in men

en.wikipedia.org/wiki/Genealogical_DNA_test

A genealogical DNA test is a DNA-based test which looks at specific locations of a person's genome, in order to find or verify ancestral genealogical relationships or (with lower reliability) to estimate the ethnic mixture of an individual. Since different testing companies use different ethnic reference groups and different matching algorithms,ethnicity estimates and more distant DNA matches ...

www.azcentral.com/story/news/local/arizona-best-reads/2017/11/30/genetic-dna...

Ancestry DNA tests: How accurate, how secure and how private? DNA tests are popular, but here are some things you should know before you spit into a tube

dnaadvice.com/how-accurate-dna-tests-ethnicity

Digging deeper into the accuracy of ethnicity dna test kit results. The best ethnicity test kits will come back with data such as saying you are 25% German ancestry, plus percentages from other countries. The less good ones will be more approximate and just give continents or more general global areas.

www.geneticsdigest.com/ancestry-dna-tests-how-accurate-are-they

The Accuracy of DNA Testing . This is one of the most common questions and the most difficult to answer. There are approximately forty companies currently offering DNA testing to determine genealogy and ethnicity. None of these companies have shared their data, no standards of accuracy have been agree on and independent scientists have not yet ...

www.quora.com/How-accurate-are-Ancestrys-DNA-tests

I am no expert on DNA nor a scientist of any kind. But I know from experience that the DNA tests do accurately match you with others with whom you share DNA. The ethnicity estimates are just that - estimates. But in my case at least, they correspond accurately to what I know about my ancestry.

www.smarterhobby.com/genealogy/best-dna-test

Best DNA Test for Ancestry. ... An autosomal DNA test will provide an ethnicity report, but keep in mind it only goes back about five generations. ... Genealogical DNA testing is finally accurate enough, inexpensive enough, and useful enough for connecting with your family. I recommend it to everyone interested in learning more about their roots.

www.livescience.com/7384-genetic-ancestry-tests-hype-scientists.html

Most genetic ancestry tests involve the analysis of small snippets of DNA passed down only through the mother, or only through the father. These tests can identify related individuals who share a ...

www.familytreemagazine.com/premium/dna-fact-or-science-fiction

You can get this kind of haplogroup information from Family Tree DNA, 23andMe, and LivingDNA. In summary, your DNA test might give you a bit of insight into where your family may have lived, but at this point, it is unlikely to significantly impact your genealogy. 4. The results of ancestral DNA tests are 99.9% accurate