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How DNA Testing Has Changed Everything. From the discovery of DNA testing the task of human identification and also the determination of relationships between different individuals have been made very easy. 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. 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 invention of DNA testing all fields have preferred it to other means of identification. From the invention of DNA testing technique it was revealed that even if there is a blood relationship between people there can never be 100% similarity when it comes to DNA matter since it is unique in every individual. 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. Complete match of a sample at hand and another indicates that samples belong to the same individual while some degree of matching indicates that the individuals have a close relation. 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. Verdict declaration in the investigation of crime scene matters is only declared when the DNA matches that of the suspect. Otherwise no claims are valid when the DNA fails to match the suspect.
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A non-criminal way of using DNA test is child support or immigration. 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. 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 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.