Cell Cycle and Mitosis Flashcards

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Anaphase

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The third phase of mitosis, in which sister chromatids separate at the centromere and move toward opposite poles of the cell.

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Cell Cycle

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The sequence of events that takes place in a cell as it grows and divides.

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Chromosome

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A threadlike structure in which DNA is packaged; located in the nucleus of eukaryotic cells.

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Cytokinesis

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The stage of the cell cycle during which cells divide the cytoplasm into two separate compartments by pinching the cell membranes.

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DNA Polymerase

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An enzyme that builds new strands of DNA during replication.

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DNA Replication

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The portion of the cell cycle during which the cell makes identical copies of its own DNA in preparation for mitosis.

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Helicase

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Any of the various enzymes that untwist and open the double strands of DNA by breaking the hydrogen bonds between the nitrogenous bases.

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Interphase

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The stage of the cell cycle during which the cell is growing, carrying out its activities, and preparing for division.

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Lagging Strand

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The daughter strand of DNA that is copied in Okazaki fragments away from the replication fork.

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Leading Strand

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The daughter strand of DNA that is copied continuously toward the replication fork.