Task: Answer Verification
Input (English): Question: Are s-phase cells more sensitive to high-linear energy transfer radiation?
Answer: S-phase cells are more sensitive to high-LET IR than nonsynchronized and G(2)-phase cells, because of the following mechanism: it is more difficult for Ku protein to bind to high-LET IR-induced DNA DSBs in S-phase cells than in cells at other phases, which results in less efficient NHEJ.
Output (English): yes