Unfortunately, questions of paternity aren't so easy to answer. In order to make a determination of fatherhood, scientists almost always work backwards--from the child to the potential parent--to ...

It also enables newer techniques such as non-invasive prenatal paternity testing, which can determine paternity as early as 6 weeks into pregnancy by simply using a blood sample from the mother ...

DNA testing DNA testing is the most accurate -- at 99.99 per cent -- and advanced technology used to determine parentage. The use of DNA testing for paternity determines whether a man IS or IS NOT ...