View Full Version : Genetic Company, Number of SNPs used and Reliability

02-16-2018, 10:23 PM

I had my genome tested by two different companies: AncestryDNA and 23andme

When I attempt to use the Gedmatch calculators, each company raw data yield a bit different results. Not not that radically different. The fundamental difference is the numbers of SNPs used.

It seems that the number of AncestryDNA SNP covered/test is higher than that of the 23andme.
For example, let's say, Eurogenes tests 50,000 AncestryDNA SNPs whereas it tests 15,000 23andme SNPs.

Common sense says the higher the count of the SNPs used, the more reliable the calculator result is.

Would you give your thoughts on this?