DNA paternity testing (sometimes called parentage testing) uses DNA, the biological basis of inheritance, to prove or disprove the biological relationship between a child and an alleged father. It is because we inherit half of our DNA from our father and half from our mother.
In a DNA paternity test, DNA samples are taken from the mother, child, and alleged father and are sent to our lab. We purify the DNA and prepare it for testing to produce a genetic profile for each tested individual. The child’s profile is compared with the profiles of the mother and alleged father to determine whether he/she has inherited DNA from the alleged father. We then perform statistical analysis to calculate the probability of paternity.