Dna Profiling Research Paper

Decent Essays
DNA Profiling

Introduction

DNA profiling is a scientific process that was founded in 1985 by a Leicester University Geneticist Alec Jeffreys. DNA profiling can be defined as gathering tiny amounts of genetic materials from a sample of blood which belongs to one individual and using it as a method of identification via biological analysis. One of the methods used in DNA profiling is Polymerase Chain Reaction (PCR) Which is a 3 step process used to amplify small segments of DNA. Firstly the DNA is heated to 95 degrees C, this process breaks the hydrogen bonds that hold the DNA strands in it's double helix structure, letting the strands fall apart making single strands of Template DNA. Secondly the mixture is cooled to approximately 45-72 degrees
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The main advantages that will be discussed through out this issues analysis are that DNA can resist degeneration even after being contaminated with chemicals or bacteria, and DNA tests are easily applicable to a variety of human samples. On the other hand, the disadvantages that will be discussed include the vulnerability of DNA bases stored on a computer as well as violation of an individuals privacy. (State Government Of Victoria 2014)

DNA profiling has many uses in modern day society ranging from health care to criminal justice.

DNA profiling has become useful in outlets of society such as the Criminal Justice System and Health Care System due to DNA's ability to resist degeneration. DNA'S structure is double helix, which are two stands that are twisted around each other. Each strand contains a linear arrangement of building blocks named nucleotides and bases. The four types of bases are adenine, thymine, cytosine and guanine which are each represented by the letters A, T, C, and G. The two strands are tied together by the attraction between the four bases. Adenine is only attracted to thymine therefore forming a A-T pair and cytosine is only attracted guanine forming a C-G pair. These two pairs of bases form a bridge across the two strands making the double helix

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