DNA paternity testing is done to determine who the baby's father is and it usually involves taking a sample from the father and the baby. DNA paternity testing after delivery involves taking a sample from the mother, father and baby. The samples can include:<ul><li>cheek cells,</li><li>blood,</li><li>cord blood,</li><li>hair or</li><li>semen</li></ul>During pregnancy, samples can include:<ul><li>cells from the placenta (CVS or chorionic villi sampling),</li><li>amniotic fluid from amniocentesis, and</li><li>a blood test from the mother to check fetal DNA as early as 9 weeks of the pregnancy&nbsp;</li></ul>A DNA test from the presumed father is always needed to estbalish or exclude paternity.DNA paternity testing is the test done to establish biological paternity. It determines who the child's father is. The test is often used as a notifier and as a legal force to establish court ordered child support and visitation rights. Most cases of DNA testing involve a mother who is trying to establish paternity and a father who is not willing to accept his paternal rights.There are, however, cases where the mother is forced to undergo DNA testing of the baby in order to give paternal rights to the father being denied those rights. Either the father or the mother can demand DNA testing and if that demand is not met, an attorney can be hired to establish a legal case for paternity.&nbsp;DNA is located in every cell of the body thus as long as the sample includes cells; DNA strands can be isolated and extracted. Once the DNA is ready, the loci (or DNA points) are matched between the father and the baby. The father will either be included or excluded. Exclusion means the suspected father is not the biological father. Inclusion means the DNA loci matched at least 97% up to 99.99.&nbsp;DNA testing can take place without the knowledge of the father if the mother is able to secure a sample of DNA from the father. This test will most often not be admissible in a court of law, but could prove paternity in cases without legal status.

Paternity testing can determine whether or not a particular man is the biological father of a child. To do this test, a small sample of bodily fluid, blood or tissue from a child or the pregnant mother and the potential father are collected and examined for DNA.&nbsp;DNA&nbsp;stands for "deoxyribonucleic acid" which is material present in nearly all living organisms as the main constituent of chromosomes,&nbsp;carriers of genetic information that are&nbsp;found in the nucleus of most living cells. DNA paternity testing can be done&nbsp;either during pregnancy through non-invasive tests from the mother's blood, or it can be done during pregnancy through invasive tests like chorionic villi sampling (CVS) or amniocentesis. Both invasive tests carry small risks to the fetus, while non-invasive maternbal blood testing does not carry risks to the fetus. After delivery of the baby, paternity testing can be done from DNA obtained from the baby's blood othjer otther samples like scarpiongs from the baby's mouth.
In the past,&nbsp;DNA-based paternity tests were only available after delivery from DNA collected from the baby and the alleged father.&nbsp;It is now possible to do paternity testing during pregnancy and prior to birth with a simple non-invasive blood test from the mother and a DNA test from the father. This new test was reported in the journal&nbsp;<a href="http://journals.lww.com/greenjournal/Citation/2014/08000/Single_Nucleotide_Polymorphism_Based_Noninvasive.3.aspx" target="_blank">Obstetrics &amp; Gynecology.&nbsp;</a>Fetal DNA testing from the mother's blood is p[ossible as early as 8 weeks in pregnancy without risk to the baby, because only blood is collected from the mother without the need of an invasive test. The test is done because cells from the fetus float freely in the bloodstream of the pregnant mother as early as 8 weeks of the pregnancy. Testing companies&nbsp; can develop a DNA profile of the fetal cells and compare the profile to the DNA profile of the presumed father. A conclusive paternity test report can be delivered in as little as 3 business days after both DNA samples have been received.

Paternity Test

DNA paternity testing is done to determine who the baby's father is and it usually involves taking a sample from the father and the baby.