Dna Profiling

2599 Words Jun 26th, 2011 11 Pages
DNA profiling is a method of identifying an individual by unique characteristics of their DNA. A specific DNA pattern, called a profile, is obtained from an individual or a sample of tissue. This allows the comparison of the base sequence of two or more DNA samples to determine whether they are related.
DNA profiling has many uses, in prevention of economic fraud, dietetic work, and classifying species, identifying bodies, forensic science, screening for disease, and investigating paternity. Most importantly DNA profiling is used in forensic science; used to identify who committed the crime. It is estimated that roughly one percent of all criminal cases employ this technique. However, DNA profiling has been used to acquit several
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Sarah Ley, Dietitian, says “in the future we would expect to use DNA profiling to check out the risk of getting a disease such as heart disease more closely and what sorts of reactions food might have for some people.”
The last common use for DNA profiling is for paternity testing. This can be used for immigration issues by screening people claiming citizenship on the basis of their relations holding British/American citizenship. If parents are unsure who is the father of a child a DNA sample can be taken from the child and profiled beside that of the possible fathers and the result can be read against that, resolving the paternity dispute.
DNA profiling meets human demand in all these categories of uses from keeping endangered species safe to identifying killers. More detail to the cancer research is needed as a struggle for a cure is continued. The recent sequencing of the human genome, coupled with advances in biotechnology, is enabling the comprehensive molecular profiling of human tissues. In particular, DNA microarrays are powerful tools for obtaining global views of human tumor gene expression. Complex information from tumor expression profiling studies can, in turn, be used to create novel molecular cancer diagnostics. DNA profiling of tumor DNAs’ may reveal important new diagnostic therapys’ targets to improve prediction and treatment of advanced cancer patients. In a breast cancer study, the American Association for Cancer Research