Accuracy of DNA test

Many people often wonder how accurate is DNA paternity testing? “DNA paternity testing is reputed to be 99.99 percent or higher accurate when done properly,” according to Salami Abiodun,   Senior Geneticist with DNA Centre for Paternity Test, Nigeria.

He explained that DNA paternity testing (sometimes called parentage testing) uses DNA (Deoxyribonucleic Acid), the biological basis of inheritance, to prove or disprove the relationship between a child and an alleged father.

Noting that paternity can even be established before the baby is born using a prenatal paternity test, he said the test can also be performed even if the alleged father is missing or deceased.

As explained by Abiodun, “If two possible fathers are related as full brothers or father and son, they may share many of the DNA markers used in paternity testing. This means that if proper precautions are not taken, both men could test positive as the child’s biological father.

“DNA testing is strong enough to determine paternity in a case involving related alleged fathers, but the laboratory must be aware of the situation before the testing process begins.”

He said DNA Centre offers two options for cases involving alleged fathers who are related.

“Option 1: Test both alleged fathers, the child, and the mother at the same time. By comparing both alleged fathers’ DNA profiles with the child’s DNA profile, our expert laboratory staff can achieve accurate and conclusive test results.

“Option 2: Test one alleged father with extended analysis. This option can be taken when only one of the alleged fathers is available for testing. To produce a conclusive result, we must perform extended testing and statistical analysis. There is an additional fee for the extended testing and analysis.”

Explaining the difference between legal DNA test and informational DNA test, Abiodun said both tests are exactly the same.  “The difference is that legally-binding tests require a witness, proof of identity, and special chain of custody procedures. The Peace of Mind test is for informational purpose only, therefore is not legally binding. It is intended as a discrete and private way whereby families can resolve questions without involving outside parties.

“Whether for legal or personal purposes, the DNA test results and testing are the same. When testing for legal purposes, a third-party must witness the DNA collection process and verify the identity of each person being tested.”

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