Explain4 marksStandard
In an experiment, skin stem cells in a mouse are activated after a wound. Explain how these stem cells contribute to tissue repair, with reference to the cell cycle and the role of telomeres.
CAIE A Level Biology 9700 · The mitotic cell cycle
The mitotic cell cycle: explain question
How this question is marked
4 marks, so the mark scheme is looking for about 4 separate creditworthy points. Making the same point twice in different words earns it once.
Explain means: Give the reasons or the mechanism: why or how something happens. Link each point to the next with because, so or which means. A list of facts with no links usually loses the reasoning marks.
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