This is because at-home health tests only look at certain DNA markers, not the whole sequence. Think of it as a more zoomed out version of the results you would get from a doctor-ordered ...
Figure 1: Comparison of DNA degradation for selected conventional ... According to the latest results on biological activities of free DNA molecules, such a product is critical for the new tasks ...
DNA evidence recently published in Current Biology suggests things were not as they seem. “What we found is that, in fact, all four of these individuals were male, which disproves this theory ...