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During cytokinesis a new membrane (and a cell wall in plants) is formed at the equatorial plate dividing the cell into two daughters.

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Stages :

1. Prophase
2. Metaphase
3. Anaphase
4. Telophase

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Prophase :

• Chromosomes condense and get coiled. They become visible even in light microscope and nucleoli become smaller (material to chromosomes).
• Chromosomes split lengthwise to form chromatids connected by centromeres.
• Nuclear membrane disappears.
• Centrosome, containing rod-like centrioles, divide and form ends of spindle (probably animal cells only)

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Metaphase :

• Chromosomes move to spindle equator, centromeres attached to spindle fibers.

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Anaphase :

• Centromeres split to separating the chromatids.
• Spindle fibres attached to centromeres contract, pulling chromatids towards poles.

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Telophase :

• Chromatids elongate, become invisible, (replication at this stage to become chromosomes).
• Nuclear membranes form round the daughter nuclei.
• Cell membrane pinches in to form daughter cells (animals) or new cell wall material becomes laid down across spindle equator (plants)
• Nucleus divides into two and division of cytoplasm starts.

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