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What Is Genetic DNA Testing?

What is genetic testing? Genetic testing is fast gaining popularity to test for various diseases, illnesses as well as for paternity, ancestry and a number of other things but what is genetic testing? Genetic testing is the analysis of DNA from our bodies and the interpreting of the DNA code to read a number of different things depending on what is being tested.

In each of our cells there is a substance known as DNA, each DNA strand consists of a number of segments containing the code for everything about us – our eye color, hair color, height, other physical features as well as information relating to a number of diseases and illnesses.

There are also certain segments on these DNA strands that do not change much over time and is passed from generation to generation. It is this factor which makes it possible for genetic testing to determine both paternity as well as earlier ancestry.

Genetic testing can be done either before birth or after birth. If genetic testing is required before birth the mother’s doctor will either take some fluid from around the fetus through amniocentesis or will do a CVS to take material from the placenta which contains genetic information. After birth genetic testing can be done either through blood samples or through taking a swab of the inside of the cheek, which is generally the preferred method as it is painless and easier to perform.

As mentioned previously, genetic testing can also be done for a number of reasons. Before birth genetic testing may be done to test for the possibility of diseases such as Down’s syndrome, this may also be done when the baby is first born as well as checking for a number of other diseases. Genetic testing may also be used to diagnose certain diseases or to test whether someone is a possible carrier of a disease for a genetic disorder. Paternity testing or using genetic testing to determine whether someone is the father of a specific child, as well as ancestry genetic testing is also becoming more popular. Apart from personal reasons genetic testing is also done for research as well as forensic reasons, as DNA at the scene of a crime can help give evidence against a criminal.

In conclusion, the answer to what is genetic testing is that genetic testing is the analysis of DNA in our cells to test for paternity, diseases, research or forensic reasons. Our DNA is unique to us; however it is passed down from our parents, some of it remaining relatively unchanged and so although it can tell specific things about us, it can also tell us who our parents are and something about our ancestry. Genetic testing is done either through taking a blood sample or cheek swab or, in the case of prenatal genetic testing, an amniocentesis or CVS is done.

Learn more about DNA test labs on our site You'll also find other information such as home DNA test and paternity test GeneticDNATestingHelp.org is a comprehensive resource for people who are interested in gentic DNA testing for paternity, genealogy, or medical reasons.

Source: www.isnare.com