S phase

Definition

The S phase is a period in the cell cycle during which DNA replication occurs, ensuring that each daughter cell receives an exact copy of the parent cell's DNA. It is a crucial part of the process of cell growth and division, sitting between the G1 and G2 phases.

Related terms

Cell cycle: The series of events that take place in a cell leading to its division and duplication (replication).

DNA replication: The process by which a double-stranded DNA molecule is copied to produce two identical DNA molecules.

Chromosome: A long, continuous thread of DNA that contains numerous genes and regulatory information, crucial for cellular function and inheritance