- A Chromosome condensation during prophase
- B Spindle assembly during prometaphase
- C Cytokinesis (cleavage furrow formation)
- D DNA replication during S phase
Correct answer: C. Cytokinesis (cleavage furrow formation)
Explanation: Actin and myosin form the contractile ring in animal cell cytokinesis. The ring contracts to form the cleavage furrow.
Concept context
Mitosis and meiosis: how cells divide for growth, repair, and reproduction.