Mosaic Down syndrome is a rare form of Down syndrome. People with mosaic Down syndrome only show extra chromosomes in some cells, as opposed to all their cells. Human DNA typically contains 23 pairs ...

Teenagers with Down syndrome experience many of the same emotional and hormonal changes as their peers. Their teenage years can also offer the opportunity to expand their functional and social skills.

Down syndrome is a genetic condition in which someone is born with an extra full or partial copy of the 21st chromosome, says Mary Pipan, MD, a behavioral pediatrician and the director of the Trisomy ...

Fetal alcohol syndrome (FAS) and Down syndrome are both conditions that are present at birth. While they both affect facial appearance, development, and physical health, they have different causes.