No. Down Syndrome is a genetic issue that babies are born with. Developmental disabilities usually show up as a child is developing and they are diagnosed at some point after infancy.
What Harry said. They are borne with missing chromosomes. I believe it's two short if I'm not mistaken.
oh scratch that. No, they are born with extra chromosomes. I mixed it up with another chromosome condition.
This post was edited by Benedict Arnold at November 29, 2017 8:42 PM MST