S phase

The S phase, or Synthesis phase, is a part of the cell cycle where a cell duplicates its DNA in preparation for cell division. During this phase, each chromosome is copied, resulting in two identical sets of genetic material. This process ensures that when a cell divides, each new cell will receive an exact copy of the DNA. The S phase is crucial for growth, development, and tissue repair in living organisms, as it guarantees that the genetic information is accurately passed on to daughter cells.