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"Precisely define each race, likely via genetic clustering." 23andMe does that.[1] They identify 47 ancestry populations. If you send them a DNA sample, they
by Animats 2y ago
"Precisely define each race, likely via genetic clustering."
23andMe does that.[1] They identify 47 ancestry populations.
If you send them a DNA sample, they give you your percentage from each group.
[1] https://customercare.23andme.com/hc/en-us/articles/212169298-23andMe-Reference-Populations-Regions https://customercare.23andme.com/hc/en-us/articles/212169298...
- rawgabbit 2y agoTheir hierarchy makes more sense the US Census https://www.census.gov/topics/population/race/about.html https://www.census.gov/topics/population/race/about.html
- gus_massa 2y agoIt's weird to see a no subgroups in "Indigenous American". Is the migration too recent to get enough genetic markers?
- Animats 2y ago23andMe identifies seven genetic subgroups for that group. There may not be enough samples for finer detail. People have tried to use 23andMe data to decide who gets tribal membership benefits. But the company says there's not enough genetic difference for that. There's a lot of noise in genetic data. Each person's DNA is about half from each parent, but which parts are copied is somewhat random. Unless some population comes from a very narrow base, such as Thoroughbred horses (three founding sires, although many mares) or cheetahs (almost extinct at some point and have only a few common ancestors), strong genetic uniformity is rare. Some isolated human populations show it, but those are inherently ones that don't get around much.