This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General physiology, Subject name: Physiology
[{'content': 'Activation of G-protein regulate all of the following except \nSelect and explain. \nA. Adenyl cyclase activity, B. Ion channels, C. IP3 & DAG, D. Transcription factor', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Activation of g protein causes separation of alfa sub unit from beta nad gama subunits which produces DAG,IP3 Ref:Guyton and Hall textbook of medical physiology 12th edition,page,:534,535', 'role': 'assistant'}]