Bio & Biochem Quiz
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FOUNDATIONAL CONCEPT 3: ORGAN SYSTEMS AND HOMEOSTASIS
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A researcher records from a presynaptic terminal and finds that an action potential arrives normally, but neurotransmitter release is greatly reduced. A toxin is suspected to selectively disrupt the SNARE complex involved in vesicle docking and fusion, without altering voltage-gated Ca2+ channel opening. Which event during synaptic transmission is most consistent with reduced neurotransmitter release in this case?
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