What is the correct sequence of phases in a mitotic cycle?

The correct sequence of phases in a mitotic cycle is G1, S, G2, M. This sequence represents the key stages of the cell cycle that a eukaryotic cell undergoes as it prepares for and ultimately completes mitosis.

In the G1 phase (Gap 1), the cell grows and accumulates the necessary nutrients and energy to support DNA synthesis. This phase involves various metabolic processes, and the cell also checks for DNA integrity.

Following G1, the cell enters the S phase (Synthesis), where DNA replication occurs. Here, each chromosome is duplicated, resulting in two sister chromatids attached at the centromere. This is a crucial step, as the genetic material must be faithfully copied to ensure that each daughter cell receives an identical set of chromosomes.

After the S phase, the cell moves into the G2 phase (Gap 2). During G2, the cell continues to grow and further prepares for mitosis by synthesizing proteins and organelles. Additionally, it conducts a final check for any DNA damage before entering mitosis.

The M phase (Mitosis) follows, during which the actual division of the cell occurs. Mitosis includes several sub-phases (prophase, metaphase,