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: Pathology
[{'content': 'True about MHC-class II - \nSelect and explain. \nA. Not involved in innate immunity, B. Cytotoxic T-cell involved, C. Present in nucleated cells, D. All', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., NOT involved in innate immunity o MHC I and II are pa of adapative immunity. Major function of MHC molecule is to present the antigen to T cell that is pa of adaptive immunity. o Cytotoxic T cells are MHC - class I restricted. o MHC class II complex is found only on cells of the immune system (class I is found on all nucleated cells and platelets. o B cells have both MHC class I and II complexes.", 'role': 'assistant'}]