This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Amino Acids Basics, Subject name: Biochemistry
[{'content': 'Ketogenic amino acids are all except- \nSelect and explain. \nA. Leucine, B. Lysine, C. Tryptophan, D. Histidine', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Histidine o Leucine and Lysine - Pure ketogenico Tryptophan - Glycogenic and ketogenico Hitidine - Pure glucogenicGlucogenicKetogenicBoth glucogenic & ketogenico Alanineo Arginineo Aspargineo Aspartic acido Cysteineo Glutamineo Glutamic acido Glycineo Histidineo Methionineo Prolineo Serineo Threonineo Valineo Leucineo Lysineo Isoleucineo Phenylalaineo Tyrosineo TryptophanNote: According to Harper 29th/e (P-282), lysine is both ketogenic and glucogenic. But all other textbooks have mentioned it as ketogenic.", 'role': 'assistant'}]