Semiconservative replication refers to the mechanism by which DNA is replicated in all known cells. It produces two copies that each containone of the original strands and a new strand. This process creates enough genetic information to divide among two cells when cell division occurs. It begins when DNA consisting of two strands of complementary genetic information separates. Once separation is accomplished, complements to each old strand of DNA form and take the place of the sides that are missing.
It takes place during the stage of the cell life cycle called S phase. In the S phase, the cell goes through growth that makes the proteins able to perform replication. Once the DNA is replicated, the cell goes through another growth phase before it begins division. Division of the cells occurs during mitosis. Once it goes through mitosis, the process starts again.