IB Biology HL D2.1.9 Meiosis As Reduction Division Questions

Meiosis begins after one round of DNA replication and includes two nuclear divisions. In meiosis I, homologous chromosomes separate to produce haploid nuclei.

Exam points

Explain how one round of DNA replication is followed by two nuclear divisions, reducing chromosome number to produce haploid nuclei.
Distinguish meiosis I from meiosis II: homologous chromosomes separate in meiosis I, while sister chromatids separate in meiosis II.

[Maximum number: 2]

The micrograph shows a plant cell of Lilium grandiflorum during meiosis.

Figure for Question IB Biology HL D2.1.9 Meiosis As Reduction Division Questions question 1 — IB Biology HL

Identify, giving reasons, the stage of meiosis shown by this cell.

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IB Biology HL D2.1.9 Meiosis As Reduction Division Questions question 1