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The difference between a DNA test for genealogy and a WGS (Whole Genome Sequencing) test is that the test for genealogy obtains values for about 700,000 SNPs (Single Nuleotide Polymorphisms), whereas the WGS obtains the values for all 3 billion positions in your genome. For genealogy purposes, the 700,000 are enough, because they are picked from among the 10 ...


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Ignore the cM value offered by the One-to-One tool, as a cM is just a STATISTICAL APPROXIMATION, instead check the offered SNP comparison values, it should read: "100 Pct SNPs are full identical". FYI: The SNP count offered for the comparison CAN'T exceed the SNP count of the smaller AncestryDNA v3 kit. If you were to run the "DNA File ...


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Each genealogical testing company selects a proprietary portion of the approximately 700,000 SNPs to include in their test and this changes over time with different versions of their test as they evolve: 23andMe v3 11/2010 to 11/2013 v4 11/2013 to 08/2017 v5 08/2017 to at least 01/2020 according to their API since 11/2007 Ancestry v1 01/2012 to 05/2016 ...


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