Your paternity test result will invariable make reference to the combined paternity index. For every genetic locus, analysts will calculate a paternity index. Thus, the current accepted standard for paternity testing is 20 genetic loci: for each of these loci, a paternity index will be worked out. Once analysts have all 20 indices, they them combine them to form the combined paternity index through a special mathematical calculation. The combined paternity index is then expressed as a percentage which is known as the probability of paternity. The probability of paternity is always in excess of 99.9% if the alleged father is the biological dad. If he is not the biological father, he will be excluded with 100% probability.

The combined paternity index is calculated and will show that the tested man is the biological father as opposed to another untested man in the same ethnic group.


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