The Cell Cycle

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What is the Cell Cycle?

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The Cell Cycle is the series of events that take place in a cell leading to its division and replication. It consists of phases including interphase, mitosis, and cytokinesis.

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What are the main phases of the Cell Cycle?

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The main phases of the Cell Cycle are Interphase (G1, S, G2), Mitosis (Prophase, Metaphase, Anaphase, Telophase), and Cytokinesis.

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What happens during Interphase?

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During Interphase, the cell grows, duplicates its DNA, and prepares for mitosis. It consists of three sub-phases: G1 (growth), S (DNA synthesis), and G2 (preparation for mitosis).

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What is Mitosis?

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Mitosis is the process of cell division where one cell divides to produce two identical daughter cells. It includes four stages: prophase, metaphase, anaphase, and telophase.

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What occurs during Prophase?

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During Prophase, the chromatin condenses into visible chromosomes, the nuclear envelope breaks down, and spindle fibers begin to form.

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What occurs during Metaphase?

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During Metaphase, chromosomes line up in the middle of the cell, and spindle fibers attach to the centromeres of the chromosomes.

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What occurs during Anaphase?

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During Anaphase, sister chromatids are pulled apart to opposite ends of the cell by the spindle fibers.

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What occurs during Telophase?

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During Telophase, the chromosomes reach the opposite poles, the nuclear envelope re-forms around each set of chromosomes, and the chromosomes begin to de-condense.

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What is Cytokinesis?

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Cytokinesis is the final stage of the cell cycle where the cytoplasm divides, resulting in two separate daughter cells.

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What is DNA Replication?

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DNA Replication is the process by which a cell makes an exact copy of its DNA, ensuring that each daughter cell receives a complete set of genetic information.