Answer: Halves the chromosome number.
- A Copies the DNA a second time
- B Keeps the chromosome number the same
- C Halves the chromosome number
- D Joins two gametes together
Correct answer: C. Halves the chromosome number
Explanation: In meiosis I homologous chromosomes separate, halving the chromosome number from diploid to haploid - hence 'reductional'.
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.