During which phase of the cell cycle is DNA replicated?

Answer and explanation

Correct answer: B. S phase

  1. Step 1: S stands for synthesis. Step 2. Each chromosome is copied to form two sister chromatids. Answer: S phase. Why not the others: G1 and G2 are interphase growth and checkpoint phases, while M phase encompasses nuclear mitosis and cytokinesis rather than semiconservative DNA replication.

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