A-LevelBiologyThe mitotic cell cycle9700/12 · Oct/Nov 2023 · Q181 Mark

A human embryo consists of 12 cells at the start of day 1. The cells divide by mitosis for 4 complete days at a rate of 1 division every 32 hours. What is the maximum number of cells in the embryo at the end of day 4?

A48 cells

B96 cells

C192 cells

D384 cells

✓ Correct answer

B: 96 cells

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Topic: The mitotic cell cycle, A-Level Biology (syllabus 9700). Multiple choice, 1 mark.
Source: A-Level Biology, Oct/Nov 2023 Paper 1 Variant 2, question 18.

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