Mitosis: how one cell becomes two

Process map by Brian. 20 steps, 2 layers. Tags: science, biology.

1. The cell: Cell grows and copies its DNA (interphase)
2. Checkpoint proteins: Checkpoint: is the DNA fully copied and undamaged?
3. Chromosomes: Prophase: chromosomes condense into visible X shapes
4. Spindle fibers: Spindle fibers build out from both poles
5. Chromosomes: Metaphase: chromosomes line up along the middle
6. Checkpoint proteins: Is every chromosome attached to the spindle?
7. Spindle fibers: Anaphase: sister chromatids are pulled apart
8. Chromosomes: Telophase: two new nuclei form
9. The cell: Cytokinesis: the cell pinches in two
10. The cell: Two genetically identical daughter cells
11. Spindle fibers: Fibers keep searching for the loose chromosome
12. Checkpoint proteins: Repair it, or if hopeless, trigger self-destruct (apoptosis)

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