A-LevelBiologyThe mitotic cell cycle9700/12 · Oct/Nov 2014 · Q191 Mark

A student examined the cells in the growing region (meristem) of an onion root and recorded the data below. [Figure 19] What percentage of cells contain chromosomes that appear as two chromatids?

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A97.5%

B95.9%

C8.9%

D7.3%

✓ Correct answer

C: 8.9%

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Topic: The mitotic cell cycle, A-Level Biology (syllabus 9700). Multiple choice, 1 mark.
Source: A-Level Biology, Oct/Nov 2014 Paper 1 Variant 2, question 19.

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