DNA Testing Accreditation and Accuracy
homeDNAdirect offers internationally accredited DNA testing and the laboratories we use are specialized in DNA profiling and genetic identification testing and equipped with a state of the art laboratory and staffed by a team of scientists highly experienced in their field.
Accredited laboratories have passed a rigorous review and inspection of their testing processes and laboratory to insure that tests are being done accurately and thoroughly. Accredited laboratories also participate in proficiency testing schemes and are inspected frequently. In order for a DNA test to be admissible in court, the DNA test must be performed by an accredited paternity testing laboratory.
DNA testing – laboratory accreditation
The laboratory has been awarded the ISO17025 accreditation which is a rigorous quality assurance system compliant with international ISO quality standards. All processes are subject to regular independent external monitoring ensuring results of the highest standard for our clients. Through this program, accredited laboratories have passed a rigorous review and inspection of their testing processes and laboratory to insure that tests are being done accurately and thoroughly. Accredited laboratories also participate in proficiency tests and are re-inspected bi-annually.
Accuracy of our DNA tests
In DNA paternity testing cases, if the alleged father is the true father, all 20 genetic markers will match those of the child (we actually test 21 markers but the 21st genetic marker is used to confirm the sex of the person. Thus, the comparison takes place using 20 markers). A total match between all genetic markers is referred to as an “inclusion”. We guarantee that in such cases (testing the mother, child, and alleged father), our DNA paternity tests will yield Probabilities of Paternity of more than 99.999%. In fact, in the case of a DNA paternity test the technical accuracy of the PowerPlex16 Multiplex is guaranteed to be 99.999% for inclusions and 100% for exclusions where both the parents are tested.
In cases where the paternity test includes only one parent and the child, the resulting probability is in most cases greater than 99.99%, although an exact minimum probability of parenthood as per above cannot be determined in advance.
Such extremely high probabilities mean that you can have the peace of mind that the DNA test will confirm whether the alleged father is the true biological father or not.
In our section understanding your results, we have provided some examples of what our DNA paternity test result looks like. In addition, we have also provided comprehensive information on how to interpret the results.
In some rare cases it is possible that the true biological father of the child may have one or even two exclusions (mismatched genetic markers) caused by mutations in the child’s DNA. When there is only one exclusion (one genetic marker which does not match) many times the Probability of Paternity will still be very high (greater than 99.9%), although this cannot be guaranteed. In cases where there are two exclusions further testing may be required to obtain a conclusive result.
The homeDNAdirect guarantee
homeDNAdirect guarantees that all DNA testing is performed by fully accredited partner laboratories using the latest DNA capillary sequencing equipment and technology. The expertize of their scientists combined with the investment in technology enables us to provide you with DNA testing at very competitive prices, fast turnaround times and with the highest levels of accuracy backed by the laboratory’s accreditation status.