Can a DNA Test Ever Show 100% Probability of Paternity?

As a top paternity lab we often get asked, “If I’m considered the biological father, why do my test results show 99.99% and not 100% probability of paternity?”  That’s an excellent question, and it’s also a scientific one. Here’s an explanation in layman’s terms about why probability of paternity can never—that’s correct—never be 100%. How…

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