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 duplication (replication). It consists of interphase and the mitotic phase.

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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) and the Mitotic Phase (Mitosis 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 (cell 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, each with the same number of chromosomes as the parent cell.

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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 the mitotic spindle begins to form.

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What happens during Metaphase?

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During Metaphase, chromosomes align at the cell's equatorial plane, and spindle fibers attach to the centromeres of the chromosomes.

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What is Anaphase?

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Anaphase is the phase of mitosis where sister chromatids are pulled apart and move toward opposite poles of the cell.

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What is Telophase?

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Telophase is the final phase of mitosis where the chromosomes reach the 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 process that follows mitosis, where the cytoplasm of a parental cell divides into two daughter cells.

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What is the longest phase of the Cell Cycle?

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Interphase is the longest phase of the Cell Cycle, taking up about 90% of the total time.