DNA genetic testing is one of the newest and most sophisticated techniques that have been so useful to most people. As the genes carry a person's unique traits and attributes, these micro components have been used in several useful ways. This article will give you a primer on it.
DNA genetic testing was first used to verify paternity or to confirm if the alleged father is the biological father of a child. This has been useful in court cases like concerns on financial support and custody. It has also been used to determine one's family tree. Through an intensive analysis of the human Y-chromosomes and the mitochondrial DNA testing, information about the similarities of characteristics among people who have a common ancestor will be given. Furthermore, generic DNA tests may also help you determine your ancestry. Some do this procedure to determine their ancestral races.
If you think this is all what DNA genetic testing can do, well the article isn't over yet. Genetic DNA tests are also done to discover possible and present diseases of a child. This procedure is specifically recommended by physicians especially if one of them or a close relative has an inherited disease. This occurs in those illnesses that are recessive. This means that the disease will only manifest if the baby had acquired two copies of the problem gene. For instance, if the child has acquired a defected gene from a parent and a normal gene from the other, the off spring will not manifest the disease yet there is a 50% chance that the problem gene will be passed to their other children. In addition, the test is also advised for a client who already has a child with birth defect or those who experienced two or more periods of miscarriages and stillbirths. With these, chromosomal concerns must be checked and addressed.
The collection of data for each purpose may differ. For come cases, buccal swabbing is enough while for several maternal cases, amniocentesis is needed. With al these things, it is important that you know the limitations of genetic DNA testing.