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How Useful DNA Testing Can Be. History of DNA testing is rated approximately #{46e2cf5ad8ebc1577325503517f3c244c6f4b38c7e2a64c04a8aeb2ce3cb08b5} years ago, it has been used in human identification and establishing relationships present among different individuals. Apart from establishing a relationship between two people DNA has also helped determine the nature of relationship between the individuals. 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 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. 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. Where the samples are not identical but shows a big percentage of similarity than they most probably come from related individuals. The degree of relatedness between two people is shown by the degree of similarity between their DNA samples.
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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. Suspection holds no finality if DNA testing proves else.
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In legal cases DNA testing is used for child support and by immigration board in monitoring. Where there is no much relevant information that can be used to get the full identity, DNA can be used to determine the degree of relatedness between the finding of the DNA and the documentation at hand. If the ethnicity of individuals is not known DNA testing is applied to establish one. 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. Such cases present a good example where DNA testing is used legally. DNA testing is also used in a comprehensive way just before child adoption process can take place. Ethnic backgrounds is a matter of consideration when it comes to adoption 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.