Which phases of the cell cycle are included in interphase?

The selection of G1, S, and G2 as the phases included in interphase is correct because interphase is defined as the period in the cell cycle when the cell is not actively dividing but is preparing for division. This phase consists of three distinct parts:

1. G1 Phase (Gap 1): This is the first stage of interphase where the cell grows in size, synthesizes mRNA and proteins, and conducts normal cellular functions in preparation for DNA replication.

2. S Phase (Synthesis): During this phase, the cell synthesizes a complete set of DNA, resulting in the duplication of chromosomes. It is essential for ensuring that each daughter cell will receive an identical set of chromosomes after division.

3. G2 Phase (Gap 2): This phase follows DNA synthesis and involves further growth and preparation for mitosis. The cell continues to produce proteins and organelles, and it also undergoes additional checks to ensure everything is ready for division.

Together, these phases enable the cell to grow, replicate its DNA, and prepare properly for mitosis, making them integral components of interphase. The other choices listed refer to stages in mitosis or cellular events that occur after interphase, which do