DNA testing works by comparing genetic markers from the child and the alleged father. In some cases, the mother’s DNA may also be included to improve the clarity of the analysis. The most common collection method is a buccal swab, but blood samples and prenatal samples may also be used depending on the circumstances. This article explains the primary sample collection methods used...

      A paternity test is one of the most powerful applications of modern genetic science, used to determine whether a man is the biological father of a child. At the core of this process lies DNA accuracy—the precision with which genetic markers are analyzed, matched, and interpreted. Even a small error in DNA analysis can lead to incorrect conclusions, which may...