All proceeds benefit individuals born with Trisomy 21 ( Down syndrome ) living in the greater Los Angeles area.
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Down syndrome ( DS ), caused by trisomy 21, is the most common birth defect associated with intellectual disability.
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Thus, for example, the presence of an extra chromosome 21, which is found in Down syndrome, is called trisomy 21.
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Decreased levels of ADAM 12 may be detected in cases of trisomy 21 as early as 8 to 10 weeks gestation.
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A flat nasal bridge can be a sign of Down syndrome ( Trisomy 21 ), Fragile X syndrome or fetal alcohol syndrome.
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Around 1960 the discovery of Trisomy 21 led to the realization that genetics could be used to predict phenotype ( s ).
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*"'Delete both "'- There are thousands of summer camps in the US, this one happens to be for trisomy 21 afflicted children.
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The most common cause ( about 92 95 % of cases ) is a complete extra copy of chromosome 21, resulting in trisomy 21.
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This practice was carried out although it was already known within the medical community at the time that males with Trisomy 21 are sterile.
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His understanding of pathophysiologic connections culminated in his prediction that Down syndrome was due to a chromosomal abnormality, 20 years before trisomy 21 was discovered.
