Genetic testing is essentially the analysis of an individual's DNA to determine whether they are susceptible to certain diseases or carry a genetic disease that may cause his offspring to suffer. Genetic testing does this by showing whether there are abnormalities or mutations in a person's chromosomes, genes, or proteins. According to Genetics Home Reference, a service of the U.S. National Library of Medicine, “more than 1,000 genetic tests are currently in use with more under development (Genetics Home Reference, 2014). » There are three different categories of genetic tests. tests which include genetic testing, chromosomal testing and biochemical testing. Genetic testing, or molecular genetic testing, identifies any deviations or mutations in individual genes or short lengths of DNA and RNA that may lead to a genetic disease. Chromosome testing looks for a genetic disease by looking for larger genetic variations in entire chromosomes and long lengths of DNA. Biochemical tests focus more on proteins and enzyme activity (Genetic Testing FAQ, 2014). Different genetic testing techniques are available for adults and embryos. Testing adults is usually done to determine whether or not they are carriers and can pass on a genetic disease to their offspring. Conversely, tests performed on embryos reveal whether they are victims of a particular genetic disease. The type of genetic testing that adults undergo to determine if they are carriers is called preconception testing or carrier testing. According to NYU Langone Medical Center, “There are two ways to perform carrier testing. One solution is to analyze genes directly. Genes are extracted from blood cells. Genes are tested for mutations... middle of paper ...... and look inside the human genome. Although our results are inconclusive at this time, further research could lead to cures for genetic diseases such as cystic fibrosis. Works Cited What is genetic testing?. (April 18, 2014). - Home reference in genetics. Accessed April 30, 2014, from http://ghr.nlm.nih.gov/handbook/testing/genetictestingAbout Genetic Testing. (March 11, 2014). Genetic Testing FAQs. Accessed April 30, 2014 from http://www.genome.gov/19516567Department of Pediatrics. (January 1, 2013). About carrier testing. Accessed April 30, 2014, from http://pediatrics.med.nyu.edu/genetics/clinical-services/carrier-testing/about-carrier-testingCFTR. (April 28, 2014). - transmembrane conductance regulator of cystic fibrosis (ATP-binding cassette subfamily C, member 7). Accessed April 30, 2014 from http://ghr.nlm.nih.gov/gene/CFTR