The DNA Testing is used to indetify the changes in DNA Sequence or a structure of chromosomes. It includes the genetic changes like RNA analysis as an output of gene expression or through biochemical. Genetic testing is also known as DNA Testing and DNA testing determine the individual that the child or individual is a biological parents or not. The genetic tests are performed on a sample of blood, hair, skin or other tissues and these sample are sent to the laboratory where technicians looks for the specific changes in chromosomes, DNA, proteins which are depending on the suspected disorder. It is also important to understand when the testing procedure that their benefits and limitations of the test and the possible consequences of the related test results.