A-LevelBiologyThe mitotic cell cycle9700/12 · Oct/Nov 2019 · Q201 Mark

Which row shows the correct number of each component of a single chromosome during prophase of mitosis?

Acentromeres: 1, chromatids: 0, polynucleotide strands: 2, telomeres: 2

Bcentromeres: 1, chromatids: 2, polynucleotide strands: 4, telomeres: 4

Ccentromeres: 2, chromatids: 0, polynucleotide strands: 4, telomeres: 2

Dcentromeres: 2, chromatids: 2, polynucleotide strands: 2, telomeres: 4

✓ Correct answer

B: centromeres: 1, chromatids: 2, polynucleotide strands: 4, telomeres: 4

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Topic: The mitotic cell cycle, A-Level Biology (syllabus 9700). Multiple choice, 1 mark.
Source: A-Level Biology, Oct/Nov 2019 Paper 1 Variant 2, question 20.

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