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Paternity Testing Corporation
paternity testing, DNA paternity testing, forensic DNA testing
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Paternity Testing Corporation
Accredited DNA Parentage Testing
Who is Tested
Ideally a paternity test analyzes specimens from the mother, the child and the alleged father.

If the mother is unavailable for testing, we can also perform the test without her. We use the mother to identify the parts of the child's DNA that came from the mother (they match up). This lets us know that the remaining parts of the child's DNA had to come from the biological father, so we know what to compare to the tested man.

Without the mother, we can not know which parts of the child's DNA came from the child's biological father. When the mother is not tested we feel it is critical to do more testing in order to be convinced that we are giving our clients a reliable answer. If the mother is available, it is better to include her in the test. But even if the mother's specimen is not available PTC guarantees a 99.99% probability of paternity, so that the client still receives a very reliable test.

If the alleged father's specimen is not available, then we can test known relatives of the alleged father. It is helpful if the alleged father's parents are available for testing. If not, we can use other relatives such as siblings or other children of the alleged father. The validity of the paternity test using relatives of the alleged father is dependent upon the tested parties truly being biological relatives of the alleged father. PTC staff will be happy to discuss your specific situation and provide answers and advice on how to proceed.

If the alleged father is deceased, it is sometimes still possible to obtain the alleged father's biological specimen. If the death is recent, sometimes the coroner or hospital will have retained a tube of blood from the decedent. As a last resort it may be possible to exhume the body from the grave. However, this process can be expensive, may require going to court, and there is no guarantee that the specimen obtained in this manner will actually work.

If there is more than one possible father of the child and the possible fathers are closely related to each other, then it is very important to test them both. This would be true, for example, if two potential fathers are related to each other as brothers or as father and son. The paternity test of a single alleged father only identifies a probability of paternity for that alleged father compared to other unrelated men. If two possible fathers are closely related, then their genetic makeup can be very similar, and they could easily both receive a positive test result. In that case, the laboratory will continue testing until one of the alleged fathers is excluded (at no extra charge). If only one of the related alleged fathers is available, the client can pay the laboratory to perform additional testing in order to establish a likelihood that the tested man is the biological father as opposed to the unavailable relative. But it is best to test all related parties who could be the father of the child.

For other types of paternity testing, such as sibling studies to determine if someone is the biological brother or sister of other individuals, the parties needed for testing depend upon the facts of the specific case. Please call Paternity Testing Corporation to discuss who is available for testing. We will make suggestions on who should be tested, and give you an idea of what level of certainty can be expected from a test of the available parties.
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Paternity Testing Corporation
300 Portland St.
Columbia, MO 65201
1-888-837-8323
e-mail:  info@ptclabs.com

 
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