Which of the following is a hallmark biochemical event during the execution phase of apoptosis?
Show answer and explanation
Correct answer: Caspase activation cleaving proteins such as lamins and PARP
Caspases, a family of cysteine proteases, are activated during apoptosis, cleaving key structural and regulatory proteins (such as nuclear lamins and PARP), resulting in the morphological and biochemical changes characteristic of apoptotic cell death.
Keep practicing
More Cell cycle and apoptosis questions
- A cell with irreparable DNA damage fails the G2/M checkpoint. What is the most likely cellular fate?
- Which of the following best explains why mitotic and apoptotic cells share some morphological features such as chromatin condensation and m…
- Which of the following describes a reason why the cell cycle is tightly regulated with checkpoints rather than proceeding continuously?
- Which cyclin/CDK complex is primarily active during the G1-to-S phase transition allowing the cell to commit to DNA replication?
- Which of the following is NOT a typical morphological feature of a cell undergoing apoptosis?
- Which statement best describes the relationship between cell cycle regulation and apoptosis in tissue homeostasis?