This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Immunology, Subject name: Microbiology
[{'content': 'Which precipitates at 50 to 60degC but Redis solve on heating? \nSelect and explain. \nA. Bence Jones protein, B. Heavy chain, C. Both light and heavy chains, D. Light chains', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Bence Jones protein (Ref: Ananthanarayan, 9th/e, p. 97 and 8th/e, p. 98)* Bence Jones protein is abnormal immunoglobulin found in urine.* Coagulates at 50degC, redissolves at 70degC.*Elevated in Multiple myeloma.", 'role': 'assistant'}]