Task: Answer Verification
Input (English): Question: Is there substantial nuclear and cellular disintegration before detectable phosphatidylserine exposure during the camptothecin-induced apoptosis of HL-60 cells?
Answer: During CAM-induced apoptosis of HL-60 cells, the external exposure of PS can either precede or follow DNA cleavage, which suggests that PS exposure is not always an indicator of early apoptosis.
Output (English): yes