DNA paternity testing is done to determine who the biologic father of a child is. It can determine the baby's biologic father but testing can also be done to determine the biologic mother. DNA testing usually involves taking a sample from the father and/or the mother and the baby. The samples are then compared. It can determine whether or not a particular man is the biological father of a child. DNA paternity testing involves collecting and examining the DNA of a small sample of bodily fluid or tissue from a child and the potential father. A maternity test establishes whether a woman is the biological mother of an individual. Prior to birth paternity testing can be done with an invasive prenatal paternity testing procedure through procedures called chorionic villus sampling (CVS) or amniocentesis to determine who the biological father of the fetus is while the woman is still pregnant.