How accurate are the tests?

Our tests are 99.9% or greater for inclusions and 100% for exclusions. We guarantee 99.9% or greater. In addition the lab divides the samples among two test teams. Each test is run twice, each time by a different team. This eliminates any possibility of a mistake at the lab, so you can be assured the answer you get is accurate. http://www.accugendna.com/dnafaq.html