3.28: Understand How Division of a Diploid Cell by Mitosis Produces Two Cells that contain Identical Sets of Chromosomes

MITOSIS: Cell Division that produces two genetically identical, diploid daughter cells

FUNCTION:

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• Tissue repair / replacement: Mitosis replaces damaged or aged cells with identical healthy cells

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• Growth: Multicellular organisms increase in size and mass by increasing the number of cells via Mitosis

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• Asexual reproduction: Vegetative propagation in plants occurs via Mitosis

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• Development: Zygotes undergo Mitosis and differentiation to develop into Embryo

MITOSIS

Diagram showing the Process of Mitosis

PROCESS: Prior to Mitosis, DNA replication occurs to form two copies of each Chromosome in cell Mitosis begins with the breakdown of Nuclear membrane, allowing the Chromosomes to line up across the centre of cell Fibres will then attach to each set of Chromosomes, pulling them to each end of the cell to form two individual Nucleus Cytoplasm and Cell Membrane then divides along with the Nucleus, resulting in two identical diploid daughter cells