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The Hafslo Connection

"Nurse Betty," an aunt of mine whose DNA I manage, recently forwarded an email she received from someone who matched her on FamilyTreeDNA.  I will refer to him as "Mr. Anderson."  My aunt and Mr. Anderson share 118 centimorgans (cM) of DNA. …
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MyHeritage DNA Results Are In

I won a door prize!  It was a DNA test kit from MyHeritage DNA, which I received while attending the Association of Professional Genealogists conference in Kansas City last month.  It was funny because all four of the men at the conference…
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Y-Chromosome Adam and Mitochondrial Eve

Although Autosomal DNA is beginning to become better known as more and more people test their DNA, Y-DNA and mitochondrial DNA (mtDNA) probably still dominate the popular imagination. The reason is because of Adam and Eve.  No, I don't…

Ethnicity Estimates Revisited

I completely forgot about looking at the percentage ranges when I wrote my last post about the new AncestryDNA ethnicity update.  They are important because they emphasize how approximate the percentages remain, even if the updated profile…
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My Ethnicity Estimate Just Changed!

Talk about good timing. I just mentioned in a recent post that DNA ethnicity percentages are rough estimates and should be used with caution.((Steven Nelson Jonnes, "Understanding DNA Testing," Jonnes Genealogy Blog, 25 August 2018 (https://www.jonnesgenealogy.com/understanding-dna-testing/),…
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Applying DNA Tests to Family Trees

There are 4 types of DNA for which you can receive test results: Autosomal, Y-DNA, X-DNA, and mtDNA. To better understand the differences, it may be useful to visualize these different DNA tests and how they apply to genealogical research…
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Understanding DNA Testing

Genetic genealogy is booming!  DNA testing companies like Family Tree DNA (FTDNA), AncestryDNA, MyHeritage DNA, and 23andMe, among others, are growing rapidly as more and more people are spitting into test tubes and getting their DNA examined…