Which of the following is the most radio sensitive phase of the cell cycle?
Studies on synchronously dividing cells in culture have revealed greatest radio sensitivity for cells in G2 and M phase, and relative radio resistance for cells in late S phase, and intermediate radio sensitivity between these two extremes. Ref: Progress In Cell Cycle Research By Laurent Meijer, Armelle Jezequel,Lernard Ducommun, Volume 4, Page 202; Basic Radiation Oncology By Beyzadeoglu, Murat Beyzadeoglu, Gokhan Ozyigit, Cuneyt Ebruli, Pages 75-77
G2M
G2
S
G1