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Dna And Forensics - College Paper

Dna And Forensics

In my essay I will discuss the topic . This is an interesting topic because there have been great advances in the field of forensic science that have affected it's credibility and usage in solving crimes that would otherwise go unsolved. DNA can be found in almost any bodily fluid (semen, saliva, blood, etc.) and in less obvious places such as a strand of hair. It has become a crucial part of investigating crimes, and will continue to develop this way.
DNA first came into use for forensic science in 1986. It was used by a scientist by the name of Alec Jeffreys and his colleagues from Leicester University. He was contacted by authorities to verify the confessions by a seventeen year ...

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be replicated. It is unique to every person, but all blood relatives have similar qualities that make them identifiable. (Joe Mickel and John F. Fischer, 1998)
DNA stands for deoxyribonucleic acid, and it basically looks like a twisted ladder, or a double helix with rungs or base pairs. Guanine (G), Adenine (A), Thymine (T), and Cytosine (C) are the four bases that make up the base pairs. The bases don't just pair with any other bases, there are certain predictable combinations: A with T and G with C, and these are true to any DNA. The human body contains in excess of three billion base pairs, only a few of these are what attract forensic attention. (Joe Mickel and John F. Fischer, 1998)
The first of the two procedures I will discuss is restriction fragment length polymorphism (RFLP). It is used most in forensic science, but one of the few draw-backs are that it requires a larger quantity of the DNA and it also is more labor intensive, takes up more time, and requires ...

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Dna And Forensics. (2008, June 27). Retrieved December 23, 2024, from http://www.essayworld.com/essays/Dna-And-Forensics/85917

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PAPER DETAILS

Added: 6/27/2008 09:39:58 PM
Category: Science & Nature
Type: Premium Paper
Words: 666
Pages: 3

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