Down Syndrome : Articles

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Down syndrome is a chromosome abnormality, usually due to an extra copy of the 21st chromosome. This syndrome usually, although not always, results in mental retardation and other conditions.
Source:ADAM
Date:May 10, 2007
Down syndrome is the most common cause of mental retardation and malformation in a newborn. A genetic disorder, it occurs because of the presence of an extra chromosome.
Source:Gale Encyclopedia of Children's Health
Also referred to as Down ' s syndrome or Down ' s, a genetic disorder present at birth that is caused by an abnormality in the number of chromosomes. Down syndrome occurs with equal frequency in people of different nationalities, social backgrounds, and economic classes, averaging 1 in about every 600 births.
Source:Gale Encyclopedia of Childhood and Adolescence
Down syndrome is the most common chromosome disorder and genetic cause of mental retardation. It occurs because of the presence of an extra copy of chromosome 21.
Source:Gale Encyclopedia of Genetic Disorders Part II
Down syndrome is the most common chromosome disorder and genetic cause of mental retardation. It occurs because of the presence of an extra copy of chromosome 21.
Source:Gale Encyclopedia of Nursing and Allied Health
Down syndrome is the most common cause of mental retardation and malformation in a newborn. It occurs because of the presence of an extra chromosome.
Source:Gale Encyclopedia of Medicine
Down syndrome is the most common chromosome disorder and genetic cause of mental retardation. It occurs because of the presence of an extra copy of chromosome 21.
Source:Gale Encyclopedia of Genetic Disorders Part I
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