The Technical Aspects of Genetic Screening
Genetic screening began in 1934, in Norway, when a mother of two mentally handicapped children told a relative, a chemist, that her children's diapers had an odd smell. The chemist did some testing on the children's urine and found a biochemical abnormality, the children's urine contained too much of one chemical and not enough of another. They had inherited PKU, phenylketonuria, a disorder that causes the lack of ability to metabolize phnylalaine. Children suffering from this disorder are put on very strict diets in order to avoid mental retardation (Burge par 2).
Genetic screening is now used every day, when an amniocentesis is performed the fetus has just undergone genetic screening. Scientists can detect disease-baring mutations, test for genetic predisposition to diseases, and discover some physical characteristics and behavior traits that lie within your genes, all through genetic screening (White par 2).
Many types of genetic tests are available today. The most common type is newborn screening. Blood samples of newborns are tested for abnormal or missing gene products, some of these tests look for abnormal arrangements of the chemical bases in the ...
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Website #2: Analytical Genetic Testing Center. "What is a paternity test?" Obtained from the WWW: http://www.geneticid.com/WE01001.htm
Website # 3: DNA Learning Center. "DNA Fingerprinting." Obtained from the WWW: http://vector.cshl.org/resources/aboutdnafingerprinting.html
Website #4: Encyclopedia.com.1994. Obtained from the WWW: http://www.encyclopedia.com/articles/04986.html
Website #5:Healthline Magazine. "Genetic Screening. " August 1994. Obtained from the WWW: http://www.healthline.org/articles/oldfiles/hl940804
Website #6: Human Body. "DNA in Criminal Investigations." Obtained from WWW: http://www.mhhe.com/biosci/ap/dynamichuman2/content/humbody/reading24.mhtml
Website #7: Human Genome Education Model Project II. "Genetic Testing Fact Sheet." Obtained from WWW: http://www.dml.georgetown.edu/hugem/FGT.htm
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