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: Biochemistry
[{'content': 'Which one of the following amino acids is most likely to be found in the transmembrane region of a protein \nSelect and explain. \nA. Lysine, B. Arginine, C. Leucine, D. Aspartate', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Hydrophobic or Nonpolar amino acids are present in transmembrane region.\nHydrophillic or polar amino acids are present on outer surface of membrane.\nLeucine is a hydrophobic a.a. so it lies in transmembrane region.', 'role': 'assistant'}]