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: Unknown
[{'content': 'Which of the following enzymes is involved in process of both cholesterol and ketone bodies synthesis is – \nSelect and explain. \nA. HMG CoA reductase, B. HMG CoA synthase, C. HMG CoA lyase, D. Thiolase', 'role': 'user'}, {'content': 'Answer: B \nExplanation: This enzyme is involved in both cholesterol synthesis as well as in ketone body synthesis.\nHMG CoA reductase is the rate limiting enzyme of the cholesterol synthesis\nHMG CoA lyase is the enzyme involved in ketone body synthesis .\nThiolases also known as acetyl-Coenzyme A acetyltransferases (ACAT) are enzymes which converts two units of acetyl-CoA to acetoacetyl CoA in the mevalonate pathway.\nThiolases are ubiquitous enzymes that have key roles in many vital biochemical pathways, including the beta oxidation pathway of fatty acid degradation and various biosynthetic pathways', 'role': 'assistant'}]