Genetic Testing - Research Article from Macmillan Science Library: Genetics

This encyclopedia article consists of approximately 8 pages of information about Genetic Testing.
This section contains 2,344 words
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Prenatal Genetic Testing

Prenatal (before birth) genetic testing refers to testing the fetus for a potential genetic condition. The pregnant woman is considered the patient and makes decisions regarding prenatal testing. There are a variety of circumstances under which a woman might be offered prenatal genetic testing. The parents of the fetus may have a genetic disorder, or they may be what is known as carriers. An abnormality or birth defect may be detected on ultra-sound that could indicate a genetic condition. The fetus may be identified to be at increased risk for a chromosome abnormality, such as Down syndrome, or a birth defect, such as spina bifida, based on the result of a maternal serum screening test performed on the mother. This is a test that looks at several proteins made by the fetus that are found in a woman's bloodstream while she is pregnant. Or, the...

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This section contains 2,344 words
(approx. 8 pages at 300 words per page)
Buy the Genetic Testing Encyclopedia Article
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Macmillan Science Library: Genetics
Genetic Testing from Macmillan Science Library: Genetics. Copyright © 2001-2006 by Macmillan Reference USA, an imprint of the Gale Group. All rights reserved.
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