Guide to Paternity DNA Testing
During a DNA Paternity test, we analyse different genetic locations on the DNA molecule. A person possesses two (of many possible) alleles at each location. We identify each alleles with a number. The inheritance of alleles comes from the parents at conception. One comes from the mother and one from the father. Next, we lay out the DNA profiles of biological parents together. Here, one of the child’s alleles (numbers) will match up with a number from the biological mother’s sample. Likewise, the other should match up with an allele from the father’s sample. If these alleles match at all locations analysed, we confirm the person as the biological father of the child. This proves they have passed these genetic markers to the child at conception. Inconsistencies, (locations where there is NO match) will exclude a person as a biological father. This is because it is only possible to pass on to your offspring the alleles which you have in your own DNA profile.