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How Useful DNA Testing Can Be. From the discovery of DNA testing the task of human identification and also the determination of relationships between different individuals have been made very easy. A relationship and its nature between given individuals can be established using DNA testing. When it comes to identifying individuals body cells whether dead or alive can be used to identify an individual. Even body parts made of continuous dead cells like hair can be used to tell gender and ethnic background of an individual. Method of identifying people using blood types was used before the invention of the DNA testing method. However blood typing was not reliable at all since different individuals could have similar blood type despite the lack of any blood relationship. Since the advent of DNA knowledge the whole world now uses it as the most accurate identification method. When knowledge of using DNA for human identification came in, human identification and relationship have been discussed on the revelation that DNA is a unique molecule that can help tell people from each other.The DNA testing notion came to emphasize that DNA is a component that is a unique making also people unique from each other unlike the use of blood typing. This DNA testing heavily relies on certain unique DNA features called DNA markers. When the patterns from different DNA samples match, then they are likely to come from the same individual. Matching of DNA from different samples means that they belong to that individual at hand or in cases of high degree of similarity it means that the individuals are related. If samples are similar to a certain extent then it denotes that the individuals have a relationship to that extent.
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Nowadays DNA testing is used to settle both criminal and non-criminal cases. However DNA testing is performed according to which case is being handled of the two. Verdict declaration in the investigation of crime scene matters is only declared when the DNA matches that of the suspect. Otherwise no claims are valid when the DNA fails to match the suspect.
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For legal cases DNA testing might be used in child support or immigration monitoring. In cases of legal doubt DNA testing helps establish the best platform for identification and establishment of a relation. By DNA testing ethnic background of an individual can be determined. In some parts of the world agencies use DNA in child support to determine real parents of a child for the purposes of providing necessary child care, maintenance and the correct documentation. This case is a good example of legal DNA testing use. DNA testing is also used in a comprehensive way just before child adoption process can take place. In most cases adoption happens on basis of similar ethnicity. DNA testing helps shed light on the ethnicity of a child during adoption.