Category Archives: Learning

Tip for Gedmatch: User Lookup

When I get a new match show up on my One-to-Many list on Gedmatch, which shows up highlighted in green, I always check the new match using the User Lookup function. User Lookup is a very useful function, but many … Continue reading

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Misinformed review

It is most unfortunate to read a review of Family Tree DNA by a popular young American genealogy blogger, Heather Collins, that is full of misunderstandings about how to use DNA and how to use Family Tree DNA itself. The … Continue reading

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Science of Admixture

Garrett Hellenthal, statistical geneticist at the Genetic Institute, University College London, gave a very interesting talk at the recent Who Do You Think You Are convention in England on the science of how DNA companies predict ethnicity. Given that ethnicity … Continue reading

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Gedmatch and WikiTree

Gedmatch is now accepting links to WikiTree, which shows up in the new Ged/Wiki column. This is a welcome alternative to uploading a gedcom, which needs to be deleted and reuploaded each time changes are made to the gedcom, because … Continue reading

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Match Maker Breaker

A new tool for phasing created by Philip Gammon called Match Maker Breaker. Roberta Estes has written up a description on how to use the tool. This is an advanced tool for helping to eliminate false matches that are IBS. … Continue reading

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Gedmatch Generations

One of the tools on Gedmatch that is very useful but which causes some confusion is the column headed “Gen”, which means “Generations”. The number in this column means the estimated number of generations back to the common ancestor shared … Continue reading

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AncestryDNA article in Nature Communications

When you choose not to opt out of the research component when you first sign up for AncestryDNA, your DNA results as well as your public family tree are used as data for scientific research. Although this can include the … Continue reading

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