TExES Science 7-12 (236) Practice Test

Interphase is a critical part of the cell cycle where the cell prepares for division and comprises three distinct phases: G1 (Gap 1), S (Synthesis), and G2 (Gap 2). During the G1 phase, the cell grows and carries out its normal metabolic processes, including protein synthesis and organelle production, while also preparing for DNA replication. Next, in the S phase, the cell replicates its DNA, ensuring that each daughter cell will receive an identical set of chromosomes. Finally, in the G2 phase, the cell continues to grow and produces proteins necessary for cell division, as well as checks for any errors in DNA replication to ensure that the cell is ready for the upcoming mitotic phase. This sequence of events within interphase is essential for proper cell function and division, making option B the correct response. The other choices incorrectly incorporate the mitotic phase (M phase), which is not part of interphase, as it represents the process of cell division itself, not the preparatory stages.