From one of my colleagues:
Situation: A grade 12 Biology class
Scenario: A paper mock-up of the process of DNA fingerprinting (specifically, a paternity case). Students need to cut up DNA sequences at a restriction enzyme sequence and use a 'probe' to identify matching coding sequences.
The coding sequence: CAT
The probe: GTA (obviously ;) )
Overheard:
Partners at one desk:
"Got all the CATs highlighted?"
"yeah"
"ok, go through them now and add the GTAs"
kid at neighbouring desk:
"I really don't get what this has to do with cats"
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