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During which phase of interphase does DNA replicate

Question

During which phase of interphase does DNA replicate

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Solution

DNA replication occurs during the S phase (synthesis phase) of interphase. Here are the steps:

  1. Interphase is the phase of the cell cycle during which the cell prepares for division. It is divided into three phases: G1, S, and G2.

  2. The G1 phase is the first phase of interphase and is a period of cell growth.

  3. After the G1 phase, the cell enters the S phase. During the S phase, DNA replication occurs. The cell duplicates its DNA, so that it can later divide into two cells, each with a complete set of chromosomes.

  4. The G2 phase follows the S phase. During this phase, the cell continues to grow and prepares for cell division.

  5. After the G2 phase, the cell enters the mitotic phase, where it divides into two daughter cells.

So, to answer your question, DNA replication occurs during the S phase of interphase.

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