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#77 - dtcrawl (03/03/2013) [-]
On the first day of my AP Biology class, my teacher was explaining why instead of working in lab pairs, we would be working in lab triads. She proceeded to say
"Good things come in groups of three"

I said "except the 21st chromosome... that kinda sucks"

My teacher was the only one who laughed
User avatar #79 to #77 - freakaleak (03/03/2013) [-]
does that make the kid retarded or something?
i cant science
#80 to #79 - dtcrawl (03/03/2013) [-]
Yes, an extra 21st chromosome gives a child downs sydrome
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