How does the CRISPR Down Syndrome breakthrough work to remove the extra chromosome 21? We are closer than ever to a world ...

The heartwarming moment a teenager with Down syndrome was reunited with his older brother after three months apart has melted hearts online. Mom-of-three Kimberly DowDell, 47, captured the ...

Mosaic Down Syndrome is a genetic condition in which a person is born with an extra copy of chromosome 21 in some cells, affecting less than 1% of those with Down syndrome.

Hart: Zack (Gottsagen, an actor who was the first person with Down syndrome to present an Oscar). Zack grew up with two moms like I did, and Zack looks and sounds a lot like my little brother.