Multiple Choice
Chromosomes normally come in pairs, but people with Down syndrome have three number ____________ chromosomes in every cell in their body.
A) 13
B) 15
C) 18
D) 21
Correct Answer:

Verified
Correct Answer:
Verified
Q68: Supporters of the anti-vaccination movement believe that
Q69: Applied to children with intellectual disability, mainstreaming
Q70: Which subtype of intellectual disability is the
Q71: Diagnostic criteria for autism spectrum disorder change
Q72: Lesch-Nyhan syndrome, a rare genetic disorder that
Q74: Exposure to hazardous environmental factors always leads
Q75: Worldwide, about _% of children have ADHD.
Q76: Until the 1970s, autism spectrum disorder was
Q77: Which characteristic differentiates oppositional defiant disorder from
Q78: The leading known preventable cause of intellectual