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How DNA Testing Has Changed Everything.

History of DNA testing is rated approximately #% years ago, it has been used in human identification and establishing relationships present among different individuals. A relationship and its nature between given individuals can be established using DNA testing. In identification different human body parts carrying DNA can be used Human hair can help clarify on what gender the holder belongs to and also tell something on their ethnicity.

Before indent of DNA testing, identification was through blood typing. 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 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 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 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. 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. 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. Also the ethnicity of individuals involved can be determined.

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. 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.

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