Prophase: Chromosomes contract and become visible, Each chromosome appears as a duplicated strand, Spindle fibres appear in cytoplasm, Nuclear membrane starts to break down , , Metaphase: Nuclear membrane broken down, Chromosomes thicken even more, Chromosomes line up in the middle of the cell, Each chromosome has two fibres attached, , Anaphase: Fibres contract and chromosomes are pulled apart, Each strand is pulled to opposite ends of the cell, , Telophase: Nuclear membrane forms around each set of chromosomes , Spindle fibres break down, Chromosomes at each pole begin to lengthen, ,

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