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How DNA Testing Has Changed Everything. From the time of discovery of DNA testing in the mid 80s, use of DNA in determining relationships and also human identity DNA has emerged out as a vital item in crime investigation and also in the civic world. DNA testing helps determine if there is a relationship between given individuals and also aids in determining what kind of relationship is there. When it comes to identifying individuals body cells whether dead or alive can be used to identify an individual. Basically using only a piece of human hair one can tell the gender of the owner as well as their ethnicity. Prior the DNA knowledge identification of humans was through blood type. This was however not a reliable way at all because different people may have the same blood type thus making it difficult to come up with a clear identity. From the time DNA testing came all fields have registered attention when it comes to this issue of identification. 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. DNA relies on comparing certain DNA features called DNA markers between two individuals. When the patterns from different DNA samples match, then they are likely to come from the same individual. Where the samples are not identical but shows a big percentage of similarity than they most probably come from related individuals. If samples are similar to a certain extent then it denotes that the individuals have a relationship to that extent.
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Not only in criminal cases that DNA testing can be applied but also on the non-criminal cases or in other words the legal cases. However DNA testing is performed according to which case is being handled of the two. While judging cases from a crime scene where a stain of DNA was collected, it must match that of the suspect to prove them guilty.To prove a suspect guilty in investigation of matters at crime scene DNA stains at crime scene should match those of the suspect. In any cases it is against legal rights of a person to be detained out of non-evident suspicion.
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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. If the ethnicity of individuals is not known DNA testing is applied to establish one. Various parts of the world use DNA testing in child support in the determination of biological parents for the welfare or the child. 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.