DNA Test Results Vary

One thing that may surprise you is that the results of at-home DNA tests can vary greatly. This has nothing to do with the test kit's or the sequencing process's quality. Rather, this is due to the fact that different DNA testing services sequence different genes.

As a result, a single DNA test could reveal that you're 30% Irish, 25% Eastern European, and 45 percent East Asian. Another DNA test from a different company might look at a different set of genes and determine that you're half Irish and half East Asian. It's not that one test is better than the other; they're just looking at slightly different parts of your genome and uncovering different hints about your ancestry as a result.

Furthermore, comparing your DNA sequences to different databases may produce slightly different results. If you don't get the ancestry results you expected from your testing provider, you can reanalyze your DNA by uploading it to a third-party database.