Articles
3 articles on 23andme, ancient-DNA research written up for readers who want the evidence, not just the headline.
23andMe is a chip-based consumer test: its raw data file lists the positions genotyped by its v5 chip, and its ethnicity estimate compares them with the company's modern reference panel. The raw file is the useful part for anything further, since it can be exported and run against ancient reference panels or converted into Global25 coordinates. 23andMe itself produces neither coordinates nor an ancient-DNA analysis, so every route here starts with the download.
The articles explain why a 23andMe or AncestryDNA ethnicity estimate and an ancient-DNA ancestry test disagree by design, how to download the raw file and what the v5 chip actually covers, the exact route from that file to a Global25 coordinate row, and why a Global25 model and the ethnicity estimate answer different questions with different references and different time depths.
Get Global25 coordinates from a 23andMe file
A Global25 model and a testing company's ethnicity estimate answer different questions with different references and different time depths. What each is actually computing, and which to trust for which claim.
What a 23andMe or AncestryDNA ethnicity estimate measures, what an ancient-DNA ancestry test measures instead, why the two disagree by design, and how to run the second one on the raw file you already have.
23andMe does not produce G25 coordinates — but its raw data file is a good starting point. How to download it, what the v5 chip actually covers, and the exact route from file to coordinate row.