Not Signed In -
Down Syndrome Other Information |
47,XX,+21; 47,XY,+21; Trisomy 21 |
Down syndrome (also Down's syndrome) or trisomy 21 is a genetic condition resulting from the presence of all or part of an extra 21st chromosome. Down syndrome is characterized by a combination of major and minor abnormalities of body structure and function. Among features present in nearly all cases are impairment of learning and physical growth, and a recognizable facial appearance usually identified at birth. It is named after John Langdon Down, the British doctor who first described it ...
Wikipedia - [full article]
From the WEST scientific·clinical |
From the EAST traditional·alternative |
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Overview
... Down syndrome is a genetic disorder that causes mental retardation and other problems. The condition varies in severity, so developmental problems may range from mild to serious. It''s named after Joh...
Source: MayoClinic
Down syndrome ... Down syndrome is a chromosomal condition that is associated with mental retardation, a characteristic facial appearance, and weak muscle tone (hypotonia) in infancy. People with Down syndrome are at a...
Source: Genetics Home Reference
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