DNA Paternity Testing

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DNA paternity testing can be done as early as 13 weeks into a pregnancy by taking a blood sample from the mother, the potential father and the fetus. Learn how DNA testing is 99.999 percent accurate with information from a psychologist and counselor in this free video on paternity testing.

Part of the Video Series: Family & Parenting Tips
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Video Transcript

Hi, my name is Reka Morvay. I'm a psychologist, and I'm going to talk to you about DNA paternity testing. Using DNA tests to determine the paternity, can be done as early as 13 weeks into a pregnancy, by taking a blood sample from the woman's arm, and comparing the fetal DNA and the blood sample, to the father's DNA. DNA testing is 99.999 % effective, which means that in 100,000 cases, 99,999 will be accurate. The way it works, is that DNA strands are laid side by side, and compared for identical stretches, which can only really happen if the two individuals are related. In case of determining the paternity of a male child, comparing the Y chromosome can be helpful, because the Y chromosome is passed directly from father to son.


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