Cracking Your Genetic Code: A Review of Genetic Testing

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Cracking Your Genetic Code: A Review of Genetic Testing In Gattaca, the plot focuses on the ethics, the risks, and the emotional impact of genetic testing in the nearby future. The film was released in the 90s; yet in the present, the film does not give the impression of science fiction. Today, genetic testing is prevalent in many aspects of the scientific community. This paper will describe genetic testing, its purpose, diagnostic techniques that use genetic testing, relating Huntington’s disease to genetic testing, and the pros and cons of genetic testing.
Genetic testing
Description of genetic testing
By using identified gene mutations that are known to cause diseases, asymptomatic individuals are able to discover if they are at risk
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Dr. Howard Jacob, a geneticist sequenced Andrew’s genome; nevertheless, they were no closer to a diagnosis (Holt, 2012).
Genetic testing techniques used on adults
Confirmation of Mutated genes. When performed on adults, genetic tests can confirm or deny the presence of mutated genes in the patient’s genome. As previously mentioned, certain gene mutations are associated with diseases. Once the adult is tested and has a diagnosis, treatment may be administered. Before genetic testing was readily available, these patients would have to wait for the symptoms to develop in order to be diagnosed. Specifically, the technique of using recombinant DNA technology is used to identify various genetic abnormalities (Samen, 1996). Testing methods that examine genetic abnormalities can be at the protein or chromosomal level. Tay-Sachs disease is tested at the protein level using studies of enzymatic activity. In the biochemical assay test for Tay-Sachs, an artificial substrate that will fluoresce when converted to product is covalently linked to the normal substrate. If individuals are affected with Tay-Sachs, the product will not fluoresce because the enzyme is not functional. At the chromosomal level, RFLP analysis, DNA sequencing, In situ hybridization, karyotyping and DNA microarrays can be used. Specifically, karyotyping is a visual representation of the chromosome’s structure and number.
In the NOVA documentary, Ms. Moser’s grandfather was suffering from the Huntington’s
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