Evidence That Synaptotagmin Is the Ca²⁺ Sensor for Exocytosis of Neurotransmitters

question 11

Multiple Choice

Evidence that synaptotagmin is the Ca²⁺ sensor for exocytosis of neurotransmitters includes:

• A)Ca²⁺ binding by synaptotagmin.
• B)partial loss-of-function mutations of synaptotagmin in Drosophila and C.elegans that result in neurons that are defective in Ca²⁺-stimulated vesicle exocytosis.
• C)uncoordinated embryonic muscle contractions in Drosophila and c.elegans mutants that lack synaptotagmin.
• D)all of the above

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