trisomy 21

Scientific  

1. See Down syndrome

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Example Sentences

Down syndrome is a genetic disorder caused by the presence of an extra copy of chromosome 21, also known as trisomy 21.

From Science Daily

But Down syndrome — also known as trisomy 21 — is a remarkably variable disease.

From New York Times

It was the first time scientists had found a link between an intellectual disability and a chromosomal anomaly; the condition is now known as trisomy 21.

From Seattle Times

In a study described last month in Cell Reports, his group showed it prevented otherwise-lethal immune hypersensitivity in mice with trisomy 21.

From Science Magazine

I learnt that the most common form of Down's syndrome is trisomy 21, trisomy meaning third chromosome.

From BBC