A genetic test examines the
DNA (deoxyribonucleic acid) of a person's cells.
Genetic testing can identify changes in
genes or can analyze the number, arrangement, and
characteristics of the
chromosomes. Testing may be performed on samples of
blood, semen, urine, saliva, stool, body tissues, bone, or hair.
You inherit half of your genetic information from your mother and the
other half from your father. Genes, alone or in combination, determine what
features (genetic traits) a person inherits from his or her parents, such as
blood type, hair color, eye color, and other characteristics, including risks
for certain diseases. Certain changes in genes or chromosomes may
cause medical problems.
Kathleen Romito, MD - Family Medicine
Siobhan M. Dolan, MD, MPH - Reproductive Genetics
November 29, 2012
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