Genetic Testing

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Genetic testing is a type of medical test that identifies changes in chromosomes, genes, or proteins. Genetic test may be useful for determining a person chance of developing a genetic disorder or determining their chances of developing or passing on a genetic disorder. Geneticists examine your DNA to look at variations in DNA sequences called genetic markers that indicate a person's predisposition for developing an inherited disease that may run in their family. Deicing whether to get a genetic testing or not is a personal decision, but it can be very tough decision. In a laboratory scientist will use a process called gel electrophoresis to separate DNA fragments. The DNA is cut into different sized fragments as a result from using restriction enzymes. The different sized DNA fragments are organized injected on agarose gel with an added substance that helps it glow after the test. DNA is negatively charged. Electricity is producing a positively charged are and a negatively charged area. Opposites attract and as a result the negatively charged DNA will move quickly to the positively charged area. Smaller DNA fragments will run faster the larger DNA fragments. After the electricity is turned off smaller DNA fragments will be closer to the positively charged area and the larger DNA fragments will be farther from the positively charged area. While it is glowing scientist can take a picture of the data and record the results and compare DNA samples to look for any abnormalities. A genetic test can help a person prepare for the future. For instance, if a couple wanted to have kids and they knew a disease like sickle cell ran in the family they may consider getting a genetic test. They would be able to find out whether or not they ar... ... middle of paper ... ...Web. 17 Mar. 2014. . • "genetic counseling." Britannica School. Encyclopædia Britannica, Inc., 2014. Web. 17 Mar. 2014. . • Trottman, Melanie. "New Battles in the Workplace--Genetic Tests Create..." Wall Street Journal. 23 Jul. 2013: p. B.1. SIRS Issues Researcher. Web. 17 Mar. 2014. • Neergaard, Lauran. "Bioethics Panel Urges More Gene Privacy Protection." Indianapolis Star. 11 Oct. 2012: n.p. SIRS Issues Researcher. Web. 17 Mar. 2014. • Genetic Science Learning Center. "Gel Electrophoresis." Learn.Genetics 18 March 2014 http://learn.genetics.utah.edu/content/labs/gel/ • Fulda, K. G., and K. Lykens. "Abstract." National Center for Biotechnology Information. U.S. National Library of Medicine, 25 Aug. 0005. Web. 18 Mar. 2014. .

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