O-LevelBiologyGenetics & Variation5090/12 · Oct/Nov 2023 · Q291 Mark

A plant has 20 chromosomes in its leaf cells. The plant reproduces both sexually and asexually. What is the correct number of chromosomes in the gametes and in cells used for asexual reproduction? [Table 29.1]

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Agametes: 10, cells used for asexual reproduction: 10

Bgametes: 10, cells used for asexual reproduction: 20

Cgametes: 20, cells used for asexual reproduction: 10

Dgametes: 20, cells used for asexual reproduction: 20

✓ Correct answer

B: gametes: 10, cells used for asexual reproduction: 20

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Topic: Genetics & Variation, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source: O-Level Biology, Oct/Nov 2023 Paper 1 Variant 2, question 29.

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