What happens during mitosis
Mitosis is the seperation of DNA. There are 4 stages of mitosis that you need to be aware of for A level Biology: Prophase, Metahase, Anaphase and Telophase. (I like to remember this order as P.Mat)
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During prophase the nuclear envelope is broken down and the chromosomes condense.
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During metaphase the chromosomes line u along the equatorial plane (along the middle line of the cell)
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During anaphase the chromosomes are pulled to the poles of the cell (either side of the cell) by spindle fibres which attatch to the chromosomes at the centromere
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During telophase new neuclear envelops form around the two sets of chromosomes.
This concludes mitosis; after which cytokinesis (the seperation of the cell into 2 cells) occurs.
RW
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