system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
The phase of cell cycle, most sensitive to radiation isa) M Phase  b) G2Phase  c) S Phase  d) Early G1 Phase e) G0Phase
assistant
The correct answer is  Cells are most radiosensitive in late G, and early M phase → especially G2M interphase.