Genetic Testing is the procedure undertaken to analyze and test human genes and the underlying DNA. DNA stands for deoxyribonucleic acid and it is present in all human beings. This DNA is unique for every individual and so the results of genetic testing are used extensively in many fields. It is also used as a legal evidence in many cases.
So, how is this test done? Any person wishing to undergo a DNA test, gives his or her blood sample and the DNA is extracted from the white blood cells. It can also be done by taking a swab of saliva from the inner cheek. DNA samples can even be obtained from hair, skin and the amniotic fluid surrounding unborn babies in the womb. The DNA is analyzed to determine a person's ancestry or to diagnose any kind of genetic disease that the person may be vulnerable to. It can also be used to identify the parent of a child.
The results of genetic testing are simple. They indicate whether a person has any changes in the gene or not. In the case of a paternity test, it indicates whether a person is the father of a child or not. Though the results are simple, the tests involved are quite advanced and require the assistance of qualified professionals.
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