Methodology deep-dives, population spotlights, and engineering notes from the Ancestrify team, qpAdm modelling, ancient DNA panels, and how genetic ancestry analysis really works.
2 stories
How to download your 23andMe, AncestryDNA or MyHeritage raw data, how each file is laid out, what its chip means for coverage after the AADR merge, and what a qpAdm order does with it.
Where Global25 coordinates come from, how to get them whether you tested with 23andMe, AncestryDNA, MyHeritage, FamilyTreeDNA, LivingDNA or a whole-genome sequencer, what every route costs, and how to tell a real coordinate row from a simulated one.