the cell cycle is divided into two basic phases: Interphase and M Phase (Mitosis phase) . Interphase, which lasts more than 95% of the total duration, is further subdivided into three stages: G1 (Gap 1), S (Synthesis), and G2 (Gap 2) . In the standard schematic representation provided in the sources, Label D corresponds to the S phase (Synthetic phase), which is the specific period where DNA replication or synthesis takes place . The M Phase begins with karyokinesis (separation of daughter chromosomes) and ends with cytokinesis (division of cytoplasm) . Mastering these visual schematics is a high-priority strategy, as NCERT textbooks provide the foundation for approximately 95% of NEET Biology questions .