cell cycle and mitosis

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What is the cell cycle?

Back

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 (G1, S, G2 phases) and the mitotic phase (M phase).

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What occurs during interphase?

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Interphase is the phase of the cell cycle where the cell grows (G1), replicates its DNA (S), and prepares for mitosis (G2).

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What is the G2 phase?

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The G2 phase is the second gap phase of interphase where the cell prepares for mitosis by producing proteins and organelles needed for cell division.

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What is mitosis?

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Mitosis is the process of cell division that results in two genetically identical daughter cells, involving stages such as prophase, metaphase, anaphase, and telophase.

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What happens during prophase?

Back

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

Front

What is the role of centrioles in cell division?

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Centrioles are organelles that help organize the spindle fibers during cell division, facilitating the separation of chromosomes.

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What occurs 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 stage of mitosis where the spindle fibers pull the sister chromatids apart to opposite poles of the cell.

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What happens during telophase?

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During telophase, 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.