Animation 17.1 Phases of the Cell Cycle

Textbook Reference: The Eukaryotic Cell Cycle, p. 652

Transcript

During most of the cell cycle, the nucleus is in interphase. Interphase begins with the first gap phase, or G1, during which the cell is metabolically active and grows. Next, in S (or “synthesis”) phase, the cell also replicates its DNA.

S phase is followed by G2, the second gap phase, during which the cell grows and produces proteins in preparation for mitosis. The M phase of the cycle corresponds to mitosis, which is usually followed by cytokinesis. The cell cycle can begin again.

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