A-LevelBiologyThe mitotic cell cycle9700/12 · Oct/Nov 2016 · Q201 Mark
Which row correctly shows the behaviour of the nuclear envelope, the centrioles and the spindle during a stage of mitosis?
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Astage of mitosis: prophase, nuclear envelope: disappears, centrioles: replicate, spindle: spindle microtubules begin to form
Bstage of mitosis: metaphase, nuclear envelope: not present, centrioles: begin to move to poles of cell, spindle: spindle microtubules fully formed
Cstage of mitosis: anaphase, nuclear envelope: begins to reform, centrioles: at opposite poles of the cell, spindle: some spindle microtubules shorten
Dstage of mitosis: telophase, nuclear envelope: reforms, centrioles: one beside each nucleus, spindle: spindle microtubules break down
✓ Correct answer
D: stage of mitosis: telophase, nuclear envelope: reforms, centrioles: one beside each nucleus, spindle: spindle microtubules break down
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