A-LevelBiologyThe mitotic cell cycle9700/42 · Feb/Mar 2025 · Q55 Marks
[Figure 5.1] shows a photomicrograph of a single plant cell in a stage of meiosis. Describe the stage of meiosis shown in Fig. 5.1.
- Describe the stage of meiosis shown in Fig. 5.1.[5]
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Mark scheme
Marking points from the official mark scheme (Feb/Mar 2025). The mark or mark type is shown in brackets.
- [5] any five from: 1 (meiosis) II; 2 two cells are visible / four groups of chromosomes ; 3 anaphase; 4 as two groups of chromosomes per daughter cell ; 5 centromeres / kinetochores, attached to, spindle fibres / microtubules ; 6 spindle fibres / microtubules, shorten / contract; 7 to pull, (daughter) chromosomes / (sister) chromatids, to opposite poles / described ; 8 the centromeres lead with the chromosome arms following behind / AW ; 9 reference to no nuclear envelope;
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