When does DNA synthesis occur???
You are begging to get yourself banned! Do NOT post only answers on other students' posts. They learn nothing from that.
DNA synthesis, also known as DNA replication, occurs during the S phase of the cell cycle. It is a fundamental process that takes place before cell division, ensuring that each new cell receives an accurate copy of the genetic material.
To understand when DNA synthesis occurs, one needs to have a basic understanding of the cell cycle. The cell cycle is a series of events that cells go through as they grow and divide. It consists of several distinct phases, including G1 (Gap 1), S (Synthesis), G2 (Gap 2), and M (Mitosis).
During the G1 phase, the cell primarily grows and carries out its normal functions. However, once it reaches a critical point, it enters the S phase. In this phase, DNA replication occurs. The cell's DNA is duplicated, resulting in two identical copies of each chromosome called sister chromatids.
The S phase is tightly regulated to ensure accurate DNA replication. Multiple enzymes and proteins are involved in this process, including DNA polymerase, which adds nucleotides to the growing strand, and DNA helicase, which unwinds the double-stranded DNA. The result is the formation of two identical DNA molecules, each comprising one original strand and one newly synthesized strand.
After DNA synthesis is complete, the cell progresses into the G2 phase, where it prepares for cell division. Finally, the cell enters the M phase, or Mitosis, during which the duplicated DNA is divided equally between the two daughter cells.
In summary, DNA synthesis occurs during the S phase of the cell cycle. Understanding the cell cycle and the sequential progression of its phases is essential to comprehend when specific processes, such as DNA synthesis, take place.