Re: DNA testing #dna


Sarah L Meyer
 

What do you mean by accurate?  If you mean ethnicity, it is a science in its infancy, and is generally accurate for most people to the continent level because people moved around and intermarried.  If you are 100% AJ or close to it, then all of the sites (except Living DNA) generally identify Ashkenazic Jews accurately.  MyHeritage does have reference populations for Sephardic and Mizrachi Jews.  
If you are talking about the shared DNA with your matches, MyHeritage tends to impute longer segments than other companies - and these may or may not be accurate.  Ancestry on the other hand has an algorithm TMBER which shrinks already small DNA matches even farther.   But all of the big 4 companies (Ancestry, 23 & me, FTDNA and My Heritage) are reputable and give you matches and good results.  The first two of the big 4 require that you test with them, and they are spit tests.  The last two accept uploads of your results from other companies and will give you matches (the amount of shared DNA from a direct test will be higher than from an upload).  The last two companies also use a cheek swab instead of a spit test.  Many people test with all 4.  Thanksgiving sales are on, so it is a good time to test.
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Sarah L Meyer
Georgetown TX
ANK(I)ER, BIGOS, KARMELEK, PERLSTADT, STOKFISZ, SZPIL(T)BAUM, Poland
BIRGARDOVSKY, EDELBERG, HITE (CHAIT), PERCHIK Russia (southern Ukraine) and some Latvia or Lithuania
https://www.sarahsgenies.com

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