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by bacr
2655 days ago
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One of the more remarkable results in 21st human genetics was that the top two PCs of a genotype matrix captures geography to an amazing degree [1]. This is the PCA of a N x M matrix where you measure M genetic markers in N people in a relatively homogenous population (Europeans in the paper above). 1.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2735096/ |
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