This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pharmacology
Idenfity the false statement about G-protein coupled receptors 
Select and explain. 
A. G-Protein coupled receptors have 7 transmembrane segments and 3 subunits, B. α subunit carries inherent GTPase activity, C. α subunit seperates from β, γ subunit after binding to GDP, D. α(s) stimulates adenylyl cyclase and ↑ cAMP
C: α subunit seperates from β, γ subunit after binding to GDP
Answer: C: α subunit seperates from β, γ subunit after binding to GDP 
Explanation: α - subunit gets seperated from β, γ subunits after binding to GTP, not GDP.