Here's why:
* The cell cycle: The cell cycle is a series of events that a cell goes through from its formation to its division into two daughter cells. It's divided into four main phases:
* G1 phase (Gap 1): The cell grows and carries out normal metabolic processes.
* S phase (Synthesis): The cell replicates its DNA.
* G2 phase (Gap 2): The cell continues to grow and prepares for mitosis.
* M phase (Mitosis): The cell divides its nucleus and cytoplasm to form two daughter cells.
* Why S phase? Before a cell can divide, it needs to make a complete copy of its genetic material (DNA) so that each daughter cell receives an identical set of chromosomes. This crucial process of DNA replication happens exclusively during the S phase.
Let me know if you have any other questions!
