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Category: Making Sense of DNA

DNA Basics: Are You an Equal Mix of Mom and Dad?

December 7, 2020 thednageek 12d Comments

Do you inherit exactly half of your DNA from each parent?  As with so many questions in genealogy and in…

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Posted in: Making Sense of DNA Filed under: autosomal DNA, chromosomes, DNA inheritance

Mystery Matches at GEDmatch

July 21, 2020 thednageek 6d Comments

As this post was set to publish, MyHeritage announced a phishing attack that may stem from the GEDmatch hack. (Read…

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Posted in: Making Sense of DNA Filed under: GEDmatch, genetic privacy, hacking, privacy breach

A Major Update to “What Are the Odds?”

June 3, 2020 thednageek 17d Comments

What Are the Odds? is one of the most helpful tools for autosomal DNA, and now it’s even better!

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Posted in: Making Sense of DNA Filed under: adoptees, autosomal DNA, third-party tools, unknown parentage, What Are the Odds? (WATO)

Improving the Odds

May 25, 2020 thednageek 24d Comments

Two of the most useful aids for figuring out how you are related to your autosomal DNA matches are at…

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Posted in: Making Sense of DNA Filed under: adoptees, AncestryDNA Matching White Paper, DNA Painter, probabilities, relationship prediction, Shared cM Project Tool, ThruLines, unknown parentage, What Are the Odds? (WATO)

The Endogamy Files: What Is Endogamy?

May 5, 2020 thednageek 43d Comments

Endogamy is a word that gets bandied around a lot in genetic genealogy circles, but what it means and how…

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Posted in: Making Sense of DNA Filed under: Acadian, Cajun, endogamy, Louisiana, pedigree collapse

Jerry and Paul

May 7, 2019 thednageek 8d Comments

At age 16, Jerry’s mother was working in a canning factory, where she met a young man.  As things happen,…

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Posted in: Making Sense of DNA Filed under: artifact testing, GEDmatch, one-to-one comparison, post-mortem DNA sampling, search angel, unknown father, unknown parentage

Quick Tip: Color Code Your Ancestry Tree

March 20, 2019 thednageek 55d Comments

AncestryDNA recently added color tags to their New and Improved DNA Matches beta feature (available here if you don’t already…

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Posted in: Making Sense of DNA Filed under: AncestryDNA, color coding, filtering

AncestryDNA’s ThruLines

February 27, 2019 thednageek 174d Comments

ThruLines are automatically added to DNA tests that meet the criteria described at the end of this post. AncestryDNA’s ThruLinesTM are…

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Posted in: Making Sense of DNA Filed under: AncestryDNA, common ancestors, hints, RootsTech, Shared Ancestor Hints, ThruLines

AncestryDNA’s Updated DNA Matches

thednageek 36d Comments

These features are now available to all users of AncestryDNA and no longer require opting into “beta testing”. For RootsTech…

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Posted in: Making Sense of DNA Filed under: AncestryDNA, color coding, DNA matches, filtering, RootsTech

AncestryDNA Is Using FIRs to Distinguish Full and Half Siblings

February 7, 2019 thednageek 92d Comments

Did you know that AncestryDNA is using fully-identical regions to distinguish full siblings from half siblings?  And apparently has been…

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Posted in: Making Sense of DNA Filed under: AncestryDNA, AncestryDNA Matching White Paper, full siblings, fully-identical regions, half siblings, relationship prediction

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