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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. Apart from establishing a relationship between two people DNA has also helped determine the nature of relationship between the individuals. In the identification environments any human body component material that carries an individual’s DNA can be used for identification 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 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. 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. 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. Otherwise no claims are valid when the DNA fails to match the suspect.
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In legal cases DNA testing is used for child support and by immigration board in 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. By DNA testing ethnic background of an individual 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. Where ethnic backgrounds cannot be determined DNA testing helps to solve this.If ethnicity of a child to be adopted is not well-known DNA testing aids in determination.