Which phase of the cell cycle is most sensitive to radiotherapy:: (A) G2M phase, (B) S phase, (C) M phase, (D) G2 phase
Answer is A. Ans. (a) G2M* Dividing cells are most sensitive to radiotherapy. The phase that is most sensitive to radiation is G2M.Remember the Sensitivity in this Order G2M > G2 > M > G1 > early S > Late S