DNA Parentage Testing

DNA Samples

• Samples for DNA testing can be taken from the inside of the mouth using a swab. This method of collecting cells is known as a buccal swab, and is painless and easy. Blood samples can also be used for DNA tests.

Paternity and Maternity

• Paternity tests are used to determine the father of a child. In paternity tests, the child's DNA is studied and compared to its mother's genetic characteristics. The genetic traits that are the same as the ones found in the mother are then excluded and the remaining characteristics are assumed to from the biological father. In the event the man being tested has DNA that includes these remaining genetic characteristics, then the chances that he is the father can be determined. However, if the man being tested has DNA that does not match these remaining genetic characteristics, it can be concluded that he is not the father. In the maternity testing process, samples from the mother and child are necessary, and may also use DNA samples from the father.

Accuracy

• Advances in genetic testing have led to DNA tests that are 99.5 percent accurate. There is no difference in accuracy between a DNA test using a blood sample or a test using a cheek swab.