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: Forensic Medicine
[{'content': 'Karyotyping of foetus may be done from all of the following except : \nSelect and explain. \nA. Lymphocyte, B. Monocyte, C. Amniocyte, D. Fibroblast', 'role': 'user'}, {'content': 'Answer: B \nExplanation: B i.e. Monocyte Although human chromosome may be visualized (karyotyping) in any growing tissue such as bone marrow, skin, fibroblast, amniotic fluid cells or chorionic villusQ; they are most conveniently studied in peripheral blood lymphocytes.Q', 'role': 'assistant'}]