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Fig. 2. RT-PCR products generated using specific primers for acetylcholine receptor
genes amplified from H. monopterigium. RNA isolated from the electric
organ of the coffin ray was reverse transcribed and amplified using primers
specific for either the
, ß,
or
genes of the
acetylcholine receptor. Two RNA concentrations were tested with each primer
pair, and RT-PCR products were run on a 0.8% agarose gel and stained with
ethidium bromide. Lambda DNA cut with EcoR1 and HindIII was
used to estimate the size of the DNA fragments (left-hand lane).