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DNA as Negative Evidence, Revisited

August 14, 2022 thednageek 11d Comments

Negative evidence is the absence of something you would expect to see under the circumstances. We use negative evidence daily…

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Posted in: Busting Brick Walls, Making Sense of DNA Filed under: AncestryDNA, misattributed paternity, negative evidence, probabilities, probability, Shared Matches, What Are the Odds? (WATO)
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Chromosome Painting at Ancestry

August 8, 2022 thednageek 21d Comments

AncestryDNA recently introduced a new feature that maps your ethnicities onto your individual chromosomes. This beta chromosome painter can be…

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Posted in: Ethnicity Estimates Filed under: AncestryDNA, chromosome painter, ethnicity estimates

Education: DNA Directions

May 6, 2022 thednageek Leave a comment

DNA can be a novelty, a last resort, or a staple of your genealogy research. For less than $100, a…

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Posted in: Making Sense of DNA
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Spring Growth Is for Databases, Too!

March 29, 2022 thednageek 6d Comments

Spring has sprung, folks, and It’s that time again! We’ve had recent intel from the four biggest DNA testing companies,…

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Posted in: DNA Testing Filed under: database growth, database size
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The Endogamy Files: Visualizing Endogamy in Your Tree

March 26, 2022 thednageek 11d Comments

The first post in this series described endogamy, the practice of mating within a relatively small group over many generations,…

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Posted in: Making Sense of DNA Filed under: DNA Painter, endogamy, Exploring Family Trees tool, LucidChart, pedigree collapse
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War Babes

March 25, 2022 thednageek 15d Comments

The following is a guest post by Jane Chapman DNA is an important addition to any genealogist’s toolbox because it…

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Posted in: Finding Family Filed under: GIs, unknown father, unknown parentage, War Babes, World War II
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The Future of Relationship Predictions

March 7, 2022 thednageek 9d Comments

New tools are in the works to improve relationship predictions, but we’re not there yet!

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Posted in: Making Sense of DNA Filed under: Ped-sim, relationship prediction, Shared cM Project Tool, Shared cM Tool, shared DNA, shared Shared cM Project
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The DNA Geek at RootsTech!

March 3, 2022 thednageek 1 Comment

Chat with The DNA Geek and other experienced genetic genealogists at RootsTech!

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Posted in: Lagniappe Filed under: RootsTech
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Free DNA Tools at MyHeritage This Week!

March 2, 2022 thednageek Leave a comment

This offer from MyHeritage expires on 8 March, 2022. To celebrate RootsTech 2022 and DNA around the world, MyHeritage is…

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Posted in: DNA Testing Filed under: autosomal DNA transfers, free tools, MyHeritage DNA, RootsTech

A World of DNA

February 22, 2022 thednageek 6d Comments

Which genealogy tests are available in which countries?

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Posted in: DNA Testing Filed under: 23andMe, AncestryDNA, autosomal DNA, countries, country, Family Tree DNA, international availability, Living DNA, MyHeritage DNA

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