QQ10 The Eukaryotic Cell Cycle

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What is the Eukaryotic Cell Cycle?

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The Eukaryotic Cell Cycle is a series of phases that a eukaryotic cell goes through to divide and replicate. It includes interphase (G1, S, G2) and the mitotic phase (M).

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What are the main phases of the Eukaryotic Cell Cycle?

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The main phases are Interphase (G1, S, G2) and the Mitotic Phase (M).

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What occurs during Interphase?

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Interphase is the phase where the cell grows, duplicates its DNA, and prepares for mitosis. It consists of 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 that results in two genetically identical daughter cells. It includes prophase, metaphase, anaphase, and telophase.

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What happens during Prophase?

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

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What is Metaphase?

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Metaphase is the stage of mitosis where chromosomes align at the cell's equatorial plane, and spindle fibers attach to the centromeres.

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Define Anaphase.

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Anaphase is the stage of mitosis where sister chromatids are pulled apart to opposite poles of the cell.

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What occurs during Telophase?

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During Telophase, chromosomes de-condense back into chromatin, the nuclear envelope re-forms around each set of chromosomes, and the cell prepares to divide.

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What is Cytokinesis?

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Cytokinesis is the process that follows mitosis, where the cytoplasm divides, resulting in two separate daughter cells.

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How many chromosomes do humans have in their somatic cells?

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Humans have 46 chromosomes in their somatic cells.