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mtDNA YFull Tree

YFull Launches New mtDNA Tree

As many of you know, Phylotree has not been updated in several years. While I support Phylotree and Dr. Van Oven's efforts, he has not answered emails in some time either. This is so for both many of you and for myself ...
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Angie Dodge Killer Sketch

Genealogy & The Murder of Angie Dodge

In some genetic genealogy circles, they call it the Usry Case. It should not be called that though. It is the ongoing investigation into the murder of Angie Dodge. Angie was 18. A few short weeks after she moved into her first apartment, she was found dead ...
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Sardinia Signature

PCA Based Ethnic Origins – Part 6, Genealogical markers

It is day six, and we are back to genealogy. The only thing that is going to change PCA ethnic origins into a meaningful product for genealogists and even for personal ancestry enthusiasts is to use markers that date to the genealogical and historic time frames ...
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Ethnic Origins - Science and Not Art

PCA Based Ethnic Origins – Part 5, Science & not art

Finding the boundaries is itself kind of a frontiering science, so I would say that makes it kind of a science and an art. That quote came out of a recent news article about DNA testing. Surely it was taken out of context. So often quotes in the news are ...
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PCA Ethnic Origins Percentages

PCA Based Ethnic Origins – Part 4, Fixing the visuals

This post continues my series on PCA based ethnic origins, what they are meant for, how they work, and what can make them better. This time I will go over what is wrong with all of the visual presentations, the maps, that the companies use ...
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PCA - Italy 2

PCA Based Ethnic Origins – Part 3, How it is used

As I described in Part 2, Principal Component Analysis is a method that can show how alike or different populations of people are. Here, I will show how this method is reversed to attempt to find someone's ethnic origins ...
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PCA - Italy

PCA Based Ethnic Origins – Part 2, What it was meant for

Principal Component Analysis (PCA) is at times used as a population analysis method. It was designed to show the computed similarities and especially differences between and within data sets. The data sets could come from anything such as shopping patterns, books read, or favorite TV shows. The key is that ...
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Riverside National Cemetery POW/MIA

If there is a “Slippery Slope” it began a long time ago by Martin Hendrix

The following was written by Martin Hendrix one of the administrators of the Hendricks DNA Project. He asks what the difference is between the FBI or other Law Enforcement agencies asking for the right to be paying customers in a commercial genetic matching database and the other non-genealogy uses of ...
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Bennett Greenspan TALK

A letter from Bennett Greenspan, FamilyTreeDNA Founder

The following email was sent out by FTDNA this afternoon, 3 Feb 2018. In it, I find something deeply good, that is a true commitment to work toward improving communication with customers. In my long and passionate adventure in genetic genealogy, lack of customer communication has been the nagging aching ...
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Forensic DNA and Genealogy

Law Enforcement use of commercial DNA testing by John Carpenter

John Carpenter wrote this email to the ISOGG Yahoo group this weekend, and I am re-posting it with his kind permission. I have heard much from many people about Genetic Genealogy, Law Enforcement Co-operation, and changing the rules in the past few months. Much of it though has come from ...
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