A-LevelBiologyThe mitotic cell cycle9700/12 · Oct/Nov 2017 · Q201 Mark

The diagram shows the structure of one chromosome. [Figure 20.1 - chromosome diagram] Which row is correct? [Figure 20.2 - table describing parts of chromosome]

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A1: centromere, 2: chromatid, number of DNA strands: 2

B1: centromere, 2: telomere, number of DNA strands: 4

C1: chromatid, 2: telomere, number of DNA strands: 2

D1: telomere, 2: chromatid, number of DNA strands: 4

✓ Correct answer

B: 1: centromere, 2: telomere, number of DNA strands: 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 2017 Paper 1 Variant 2, question 20.

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