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Paternity Testing

How Paternity Testing works: DNA samples are collected from the mother, child, and alleged father. Individual DNA profiles are compared to determine the probability of paternity. The DNA test results will be reported back to you within 5 days. Your sample is processed by our laboratory with scientific experts ready to answer your questions.

DNA Test Results The results of our paternity testing is provided as reports which are very easy to read, and our legal DNA tests are admissible for any court procedure.

Legal DNA testing meets a higher standard required by courts for chain-of-custody and proof of identity. We also offer DNA testing for purposes of establishing relationships for immigration.

The science behind our DNA paternity test. The DNA paternity test is based on a segregation analysis of 16 Short Tandem Repeat (STR) sequence human genetic markers. These STRs are part of the FBI’s panel of DNA markers used for human identification (CODIS) and have been thoroughly tested and validated for human identification. Each individual will have two specific alleles for each marker tested. These alleles are constant for each individual regardless of the source of the DNA sample but will differ between individuals (except identical twins). Relatedness, therefore, is based on the number of shared alleles. A child will receive half of its DNA from the mother and half from the father; thus each biological parent must share one allele with the child for every marker. Since the test is exclusionary there is still the possibility that an unrelated individual could have a genetic profile that would not be excluded (i.e. shares an allele at every marker). To evaluate this possibility, a cumulative paternity index and a probability of paternity are calculated based on published allelic frequency tables for the race of the individuals tested. Currently, paternity is accepted in most court jurisdictions with a minimum probability of paternity of 99% or greater. The markers used in this test generally give probabilities of paternity greater than 99.99%.

If an individual does not share an allele with the child at a given marker, then that individual could not be the parent. However, based on paternity testing standards set by the American Association of Blood Banks (AABB), paternity exclusion requires mismatch at two or more markers. Exclusion at only a single marker may be declared “inconclusive”. The reason being that there is a possibility that the single marker mismatch may be due to a mutation event occurring in the alleged parent. A mutation event will not show in the alleged parent’s DNA profile but will be exhibited in the child’s profile.

Fast Effective Accurate – DNA paternity test experts

For more information about Paternity DNA Testing Solutions or to make an appointment call (515) 218 - 1777 (local to Des Moines IA only)