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Mitosis is when cells [divide], so organisms can [grow] and repair. Before the cell divides, DNA is [copied] (replicated) - so there is a copy in each of the new [cells]. DNA is in the form of X-shaped [chromosomes]. Human cells have [46] chromosomes. Mitosis is when: 1. The chromosomes [line up] at the centre of the cell 2. The [two arms] of each chromosome are pulled apart to opposite sides of the cell. 3. This divides the [nucleus] and the cell now splits into [two] cells..

B1 Mitosis RCx

by Robertcruxon

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