O Levels Biology (5090)•5090/12/O/N/23

Explanation
Chromosome Ploidy in Reproduction
Steps:
- Leaf cells are somatic and diploid (2n = 20 chromosomes).
- Sexual reproduction involves meiosis, halving chromosomes to produce haploid gametes (n = 10).
- Asexual reproduction uses mitosis on diploid cells, maintaining 2n = 20 chromosomes.
- Thus, gametes have 10, asexual cells have 20.
Why C is correct:
- Gametes are haploid (n=10) per meiosis definition; asexual cells remain diploid (2n=20) via mitosis.
Why the others are wrong:
- A: Asexual cells are diploid, not haploid.
- B: Gametes are haploid, not diploid.
- D: Gametes are haploid, not diploid.
Final answer: C
Topic: Asexual and sexual reproduction
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