This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Hemolytic anemia, Subject name: Pathology
[{'content': 'Most common defect in hereditary spherocytos is in - \nSelect and explain. \nA. Spectrin, B. Ankyrin, C. Band 3, D. Band 4.2', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Ankyrin Hereditary spherocytosis is caused bv a variety of molecular defects in genes that code for any of the followingAnkyrin - Most common (chief component responsible for biconcave shape)Band 3 - Second most commonSpectrinBand 4.2", 'role': 'assistant'}]