Answer: Direct cell division (simple fission, no spindle).
- A Indirect cell division involving full spindle formation
- B Direct cell division (simple fission, no spindle)
- C Cell division occurring without any prior DNA replication
- D A process found mainly in plant cells specifically
Correct answer: B. Direct cell division (simple fission, no spindle)
Explanation: Amitosis: direct cell division by simple constriction of the nucleus without spindle formation. Seen in some lower organisms.
The cell cycle: G1 (growth and preparation), S (DNA replication, chromosome number stays 2n but DNA content doubles), G2 (final checks before division), and M (mitosis itself) - together, G1+S+G2 make up interphase.
Concept context
Mitosis and meiosis: how cells divide for growth, repair, and reproduction.