It took more than 50 years for Marthe Gautier to set the record straight about her discovery of the genetic cause of Down ...

That’s because people with Down’s syndrome, who have an extra copy of chromosome 21, produce increased amounts of beta-amyloid, a protein that is implicated as a possible cause of Alzheimer’s.

The clinical name for Down syndrome is trisomy 21, a genetic condition in which a person is born with an extra chromosome, causing mild to moderate cognitive disability, developmental delays and p ...

Down syndrome, or trisomy 21, is a genetic disorder where babies have an extra 21st chromosome. Chromosomes are packages of genes that tell the body how to grow. An extra chromosome changes how ...

The clinical name for Down syndrome is trisomy 21, a condition in which a person is born with an extra chromosome, causing mild to moderate cognitive disability, developmental delays and physical ...

The clinical name for Down syndrome is trisomy 21, a condition in which a person is born with an extra chromosome, causing mild to moderate cognitive disability, developmental delays and physical ...