2. *IT’S A CHROMOSOMAL DISORDER
CAUSED BY AN ERROR IN CELL
DIVISION
*LEADS TO IMPAIRMENTS IN
COGNITIVE ABILITY AND PHYSICAL
GROWTH
*CAN BE DETECTED BEFORE OR AFTER
BIRTH
What’s up with Down Syndrome
3. Trisomy
21
The most
common form is
Trisomy 21.
It means 47
chromosomes
instead of 46.
Caused my an
era cell division
called
nondisjunction