Answer: 12.
- A 24
- B 48
- C 12
- D 6
Correct answer: C. 12
Explanation: Meiosis I is reductional: a 2n = 24 cell gives cells with 12 chromosomes (each still made of two chromatids).
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.