The photomicrograph shows cells undergoing mitosis.
Which statement describes what will happen next in cell X?
1 )
Chromatin coils up tightly, and the nuclear envelope breaks down.
Chromosomes line up along the equator of the cell and attach to the spindle.
3 )
Sister chromatids move towards opposite poles, pulled by the spindle fibres.
4 )
Spindle fibres break down, and the cell prepares for cytokinesis.
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