What does T21 stand for?

Trisomy 21 (Down Syndrome)

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Samples in periodicals archive:

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.

Prevalence of visual impairments in adults with cognitive and ...

That is why this disorder is also referred to as trisomy 21.

Down Syndrome Disorder

Further research is being carried out to determine whether this technology could be used to diagnose certain genetic and chromosomal conditions such as Trisomy 21 (Down's syndrome).

New technology for fetal testing: research is being carried out into ...

A positive maternal serum screening test, however, simply shows that there is a higher risk that the baby has Trisomy 21 or 18, or an neural tube defect.

Anencephaly ? Causes of Anencephaly

While noninvasive screening has enabled many AMA patients to avoid invasive sampling, many younger patients, whose risk for trisomy 21 increased above their age-related risk because of the screening, are now weighing the risks and benefits of invasive testing.

Special Feature: Amniocentesis Today-Is It Really A Benign Procedure?

As many as 95% of Down syndrome cases are caused by trisomy 21, in which a baby has three rather than two copies of chromosome 21.

Down syndrome gene may suppress tumor growth

For example, Down's syndrome occurs when a person has an extra copy of chromosome 21--a condition called trisomy 21.

Using microarrays to study cancer genetics: Greg Yap, Vice President, ...

Among the 58 correctly analyzed, two had Trisomy 21 (Down's).

Prenatal Down's Diagnosis Cusp of A Breakthrough