Question

When does DNA replication happen? A. during the G1 phase of the cell cycle B. during the S phase of the cell cycle C. during the G2 phase of the cell cycle D. during the mitotic phase of the cell cycle

Answer 1

If you want the explanation here it is : S-Phase is the part of the cell cycle in which DNA is replicated, occurring between G1 phase and G2 phase.

So answering to you question, your answer is "B. during the S phase of the cell cycle"

Answer 2

B. during the S phase of the cell cycle

Step-by-step explanation:

DNA replication occurs during the S phase of cell cycle in which the genetic content of a cell double folds so that when the cell divides into two equal halves one set of the genetic content could be passed on to the daughter cell. S phase is also known as synthesis phase. S phase is the phase of cell cycle which is in between G1 phase and G2 phase and the duration of S phase is around eight hours.