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trisomy 21

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trisomy 21

trisomy 21
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.trisomy 21 - a congenital disorder caused by having an extra 21st chromosometrisomy 21 - a congenital disorder caused by having an extra 21st chromosome; results in a flat face and short stature and mental retardation
trisomy - chrosomal abnormality in which there is one more than the normal number of chromosomes in a cell


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A literature review also showed that people with Trisomy 21 have a high risk of ocular disorders (Down's Syndrome Medical Interest Group, 2005) and that the prevalence of individuals with a visual acuity of less than 20/40 (0.
That is why this disorder is also referred to as trisomy 21.
Down syndrome, or Trisomy 21, generally is caused by an error in the development of one of the reproductive cells that combine at conception, resulting in an individual with an extra copy of the 21st chromosome.
 
 
 
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