<prompt> DNA replication takes place in which phase of cell cycle -MG1G2S  <response>: Ans. is d i.e., S o DNA replication synthesis of DNA occurs in S phase.Cell cycle consists of:G1 : Presynthetic phase,intervalS : Synthetic phase DNA synthesisG2 : Post synthetic phasepremitotic phaseintervalM : Mitotic phase : Cells are produced which either directly reenter next cycle or pass into non proliferativeG0 phaseG0 : Quiescent stateo There are two resting phases and two active phases in the cycle,o Resting phases - G1 G2o Active phasesS-phase synthetic phase - As the name suggests, synthesis of new DNA takes place, i.e. doubling of DNA occurs.M-phase mitotic phase - Mitosis takes place and the daughter cells recieve one copy of DNA. In this phase cell number is doubled. 