What was the procedure employed in Serological Testing?
Following ABO comparison, science discovered other proteins in the blood that are more group-specific than the ABO antigens themselves. Known as Rh, Kell and Duffy blood groups, these proteins give scientists the ability to exclude potential fathers at a slightly higher accuracy rate of about 40%. As with ABO testing, serological testing cannot identify the father with certainty but it can exclude those that do not possess the correct blood groups.
