Clear the Genetic
Doubt in 3 clicks

BioPaternal applies Mendel's laws to check whether the ABO, Rhesus and Kell blood groups are genetically compatible between the mother, the child and the alleged father. The analysis is computed securely and is never stored.

No. Your blood groups are never stored or logged: they're used only for the moment it takes to compute your result, then immediately discarded. No biological data can identify you or reconstruct a test.

No. This test is informational only. It can exclude paternity with biological certainty, but can never prove it. Only a DNA test performed in an accredited laboratory has legal value.

The Kell system is a third blood group (antigen K). Enabling this option increases the exclusion power of the analysis. It is shown on your blood group card or on your medical prescription.

The genetic analysis is near-instant: the result is computed as soon as the form is submitted.

In very rare cases, yes. Certain rare genetic phenomena — the Bombay phenotype, weak or partial Rhesus variants (weak/partial D), silent alleles, chimerism or mutations — alter the expression of a blood group and may lead to a false exclusion. These situations concern about 0.01% of the population. An exclusion by blood groups therefore remains close to 100% reliable, but in case of doubt, only a DNA test can settle it.

Yes. The result depends entirely on the accuracy of the blood groups entered. A typing, handling or transcription error during the laboratory analysis can distort the verdict. Check your groups on your blood group card or a medical prescription before running the analysis.