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What does the cell cycle begin with?

  1. DNA replication

  2. Cytokinesis

  3. Interphase

  4. Mitosis

The correct answer is: Interphase

The cell cycle begins with interphase, which is a stage that occurs before mitosis. During interphase, the cell grows, replicates its DNA, and prepares for division. DNA replication (option A) occurs during the S phase of interphase, and cytokinesis (option B) occurs at the end of the cell cycle, after mitosis. Therefore, options A and B are both incorrect. Mitosis (option D) is the process of cell division that occurs after interphase, making it an incorrect answer as well.