Dna Fingerprinting A Method Of Dna Analysis Used By...

Roughly speaking, DNA Fingerprinting is a method of DNA analysis used by Forensic Scientists to help solve crimes. This technique was first discovered by Professor Alec Jeffreys of the University of Leicester in 1984, when he found that DNA varies in each human being, and makes us unique. DNA could be retrieved from hair, blood and saliva amongst other things such as skin and semen. DNA fingerprinting works on the basis that each individual s DNA structure – also known as the genetic make-up of a person- is unique and therefore cannot be faked or changed, and it cannot lie in any way. Just like normal fingerprints taken from a suspect they are so unique that only in the case of identical twins - as I have already mentioned - could they be the same. This quote shows that DNA fingerprinting is a pretty accurate way of finding a suspect as it is almost impossible, given the odds of 1 in 64 billion, for two people who are not related to have DNA that would match up. The DNA would probably have to be contaminated for two unrelated people to have the same DNA, or even DNA that is similar enough to confuse suspects. This is one of the reasons that DNA fingerprinting is so useful. It is incredibly accurate as a form of identification as the genetic make-up of a person cannot lie. The results from DNA are pretty binary in terms of identification. One of the most common DNA fingerprinting procedure is Restriction Fragment Length Polymorphism. This procedure focuses on repetitiveShow MoreRelatedThe Uses Of Dn Dna Fingerprinting1486 Words   |  6 PagesTran Mr. Tucker AP Biology 26 August 2015 The Uses of DNA: DNA Fingerprinting Sir Alec Jeffreys’ 1984 discovery of DNA fingerprinting in England has revolutionized the criminal justice system by enabling legal entities to determine innocence or guilt of a suspect to a much higher level of accuracy(Butler). 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