A-LevelBiologyThe mitotic cell cycle9700/12 · Feb/Mar 2019 · Q201 Mark

Embryonic stem cells are able to replicate continuously. What happens to the telomeres during repeated mitotic cell cycles of embryonic stem cells?

ATheir lengths increase.

BTheir lengths decrease.

CThey are completely lost.

DThey stay the same length.

✓ Correct answer

D: They stay the same length.

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

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