This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
[{'content': 'Tensile strength of wound aftr laparoscopic cholecystectomy in a 30yr old woman depends upon \nSelect and explain. \nA. Replacement of type 3collagen, B. Extensive cross linking of tropocollagen, C. Macrophage activity, D. Granulation tissue', 'role': 'user'}, {'content': 'Answer: B \nExplanation: ref Robbins, 8/e p105 -106 Collagen is a ubiquitous protein with remarkable mechanical propeies. It is highly elastic, shows large during tropocollagen. The molecular component of a collagen fibril, consisting of three polypeptide chains coiled around each other.', 'role': 'assistant'}]