Briefly describe the events that occur in each phase of interphase.

Interphase is the longest phase of the cell cycle, during which the cell prepares for division. It is subdivided into three distinct phases, each with specific events: 1. **G₁ Phase (Gap 1):** - **Cell Growth:** The cell increases in size. - **Protein Synthesis:** Production of proteins and organelles necessary for cellular functions. - **Energy Production:** Metabolic activities ramp up to provide energy for subsequent phases. - **Preparation for DNA Replication:** The cell assesses whether conditions are favorable for DNA synthesis. 2. **S Phase (Synthesis):** - **DNA Replication:** Each chromosome is duplicated, resulting in two sister chromatids. - **Centrosome Duplication:** Centrosomes are copied to prepare for spindle formation during mitosis. - **Synthesis of Histones:** Proteins needed for packaging the newly replicated DNA are produced. 3. **G₂ Phase (Gap 2):** - **Further Cell Growth:** Additional organelles and proteins are synthesized. - **Preparation for Mitosis:** The cell ensures that all DNA has been accurately replicated and begins reorganizing its internal structures for division. - **Checkpoint Control:** The cell verifies that DNA replication has been completed successfully and that there is no DNA damage before proceeding to mitosis. These coordinated events during interphase ensure that the cell is adequately prepared for successful division, maintaining genetic consistency across daughter cells.