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: Gynaecology & Obstetrics
[{'content': 'In which of the following transition meiosis occurs \nSelect and explain. \nA. Primary to secondary spermatocyte, B. Second spermatocyte to globular spermatid, C. Germ cells to spermatogonium, D. Spermatogonium to primary spermatocyte', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Transition meiosis\n\nTransition from mitosis to meiosis\nThe spermatogonia undergo mitosis to form the primary \xa0spermatocytes, which then enter first meiotic division. They rest for 22 days and then rapidly complete the first meiotic division to form secondary spermatocytes.\nDuring second meiotic division secondary spermatocyte divides into spermatids.', 'role': 'assistant'}]