DNA synthesis takes place during `:`

Options

A. Interphase
B. Prophase
C. Metaphase
D. Anaphase

Answer

**Step-by-Step Solution:**

1. **Understanding DNA Synthesis**: DNA synthesis refers to the process of DNA replication or duplication, where the amount of DNA in a cell is doubled.

2. **Identifying the Phases of the Cell Cycle**: The cell cycle consists of several phases, including interphase and mitotic (M) phase. Interphase is further divided into three sub-phases: G1 (Gap 1), S (Synthesis), and G2 (Gap 2).

3. **Focus on Interphase**: Interphase is known as the resting phase of the cell cycle, where the cell is metabolically active but not dividing. It is crucial to note that DNA synthesis occurs during this phase.

4. **Identifying the S Phase**: Among the three sub-phases of interphase, the S phase is specifically designated for DNA synthesis. This is the phase where DNA replication occurs, resulting in the duplication of the genetic material.

5. **Eliminating Other Phases**: The mitotic phase (M phase) includes prophase, metaphase, and anaphase. During these phases, the cell is actively dividing, and DNA synthesis does not occur. Therefore, these options can be ruled out.

6. **Conclusion**: Based on the information gathered, the correct answer to the question "DNA synthesis takes place during:" is the S phase of interphase.

**Final Answer**: DNA synthesis takes place during the S phase of interphase.

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