IB Biology SL D2.1.9 Meiosis As Reduction Division Questions
Analyse how one replication and two meiotic divisions reduce chromosome number and produce haploid cells in IB Biology SL D2.1.9.
- Syllabus
- First assessment 2025
- Course
- Biology SL
- Level
- SL
Exam points
- Explain how one DNA replication is followed by homologous separation in meiosis I and sister-chromatid separation in meiosis II to produce haploid nuclei.
- Identify or calculate the haploid chromosome or DNA outcome in gametes and after meiosis I or II.
- Identify a meiosis stage from homologous-chromosome or chromatid behaviour in a diagram.
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IB Biology SL D2.1.9 Meiosis As Reduction Division Questions question 1
[Maximum number: 1]
The dolichos bean (Lablab purpureus) is cultivated as a food crop in tropical countries. Leaf cells in L. purpureus have 24 chromosomes.
State how many chromosomes there would be in male or female gametes of L. purpureus.
12
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