Cell in Prophase
interphase, prophase, metaphase, anaphase, telophase, cytokinesis
During prophase, a cell undergoes several changes as it prepares to divide. These changes include:
1. Chromatin condensation: The chromatin, which is composed of DNA and proteins, condenses into visible chromosomes. This condensation helps in the separation of the chromosomes during cell division.
2. Nucleolus and nuclear envelope breakdown: The nucleolus, which is responsible for the production of ribosomes, disappears, and the nuclear envelope breaks down, allowing the contents of the nucleus to mix with the cytoplasm.
3. Spindle fiber formation: Microtubules called spindle fibers start to form, extending from opposite ends of the cell towards the centrosomes.
4. Centrosome movement: The centrosomes, which are responsible for organizing the spindle fibers, move to opposite ends of the cell.
Overall, during prophase, the cell is preparing for division by condensing its DNA, breaking down the nuclear envelope, and forming spindle fibers to pull the chromosomes apart during cell division.
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