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infoWhy this? Cell division explains how organisms grow, replace damaged cells, and reproduce while maintaining genetic continuity. Understanding control of the cell cycle also helps us explain how uncontrolled division can lead to tumours.

scheduleWhy now? Earlier work on cell structure and nucleic acids provides a basis for following chromosome behaviour during division. This establishes a reference point for comparing mitosis with meiosis and supports later understanding of immune cell proliferation and cancer.