Tag: genetics

  • A Refreshed Look at My Ethnic Heritage

    A Refreshed Look at My Ethnic Heritage

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    Brendan Barry
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    Late last week I received an update on my ethnic breakdown from My Heritage, a competitor of Ancestry.com and other genealogy/family history/genetic ancestry companies. For many years, the genealogical community had been waiting for this long-promised update. And it has finally arrived. For my money, My Heritage’s older analysis, v0.95, did not align with my…

  • Updated DNA Ethnicity Estimates

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    Brendan Barry
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    Earlier this year I posted a short piece that compared my DNA ethnicity estimates provided by a few different companies to each other. Ethnicity estimates are great cocktail party conversations, but not terribly useful to people doing serious genealogy research. They are highly dependent upon the available data from reference populations. To put it another…

  • Viral Mutations

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    Brendan Barry
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    With Covid-19, one of the big challenges we face is the rapid mutations in the viral genetic code that have produced several beneficial—from the virus’ standpoint—adaptations. Several days ago the New York Times published a nice, illustrated piece that showed just what these mutations look like. Of course, these were not just nice illustrations of…

  • African Descent in African Americans

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    Brendan Barry
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    A study published last week explores the long-lasting impact of the Atlantic triangle trade of slaves on the genetic makeup of present day African Americans. Genetic genealogy can break down many of what we genealogists call brick walls, where paper records and official documentation prevent researchers from moving any further back in time. In American…

  • Pulling Gene-ies Out of Bottles

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    Brendan Barry
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    I don’t always get to share more illustrative diagrams that explain things, but that’s what we have today from the Economist. It illustrated the concept of a gene drive by which a gene modified in one chromosome then modifies the remaining chromosome to insert itself there. Consequently it stands an almost 100% chance of being…

  • The UK’s Genetic Clusters

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    Brendan Barry
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    I always enjoy the combination of two of my interests: data visualisation and genealogy. So this BBC article that references a Nature article piqued my interest. It looks at the distribution of DNA across the United Kingdom and identifies different cluster areas. The most important finding is that the Celts, i.e. the people of Scotland,…