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How Useful DNA Testing Can Be. 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. In identification different human body parts carrying DNA can be used 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. However blood typing was not reliable at all since different individuals could have similar blood type despite the lack of any blood relationship. From the invention of DNA testing all fields have preferred it to other means 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 markers are the unique features in DNA that basically aids in identification. 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. The similarity degree shows the degree of relationship of the individuals owning the samples.
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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. 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. Suspection holds no finality if DNA testing proves else.
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For legal cases DNA testing might be used in child support or immigration monitoring. DNA testing is the best option in cases where full identity of an individual cannot be unearthed or when a board like the immigration board want to relate the given details to the documented details. Also the ethnicity of individuals involved can be determined. Legally in certain parts of the world, sector of child support DNA testing is used to prove the biological parents of a child for the child to receive essentials entitled to them. This case is a good example of legal DNA testing use. DNA testing also works best when it comes to child adoption practices. Whereby adoption in many cases happens on basis of ethnic background. DNA testing helps shed light on the ethnicity of a child during adoption.