This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Membrane Structure & Function, Subject name: Biochemistry
[{'content': 'RBC membrane is maintained by:- \nSelect and explain. \nA. Spectrin, B. Laminin, C. Collagen, D. Elastin', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' spectrin .Proteins maintaining the shape, flexibility and the strength of RBC membrane are-Spectrin (most important)AnkyrinProtein 4.1A deficiency of any one of the membrane skeletal proteins can cause hereditary spherocytosis* (though spectrin is the most common defect).", 'role': 'assistant'}]