S-phase of interphase
interphase
It occurs before mitosis, in the S-phase (synthesis) of interphase.
The doubling of DNA (known as DNA synthesis or DNA replication) occurs during the "S (synthesis) phase" of the cell cycle. This is part of interphase, and occurs before mitosis (cell division).
Within the Cell cycle, Dna synthesis occurs during the S [synthesis] phase.
DNA synthesis refers to the creation of new DNA molecules. It takes place during the synthesis phase (S Phase) of cell reproduction.
S phase - for synthesis
DNA is replicated in the S phase; synthesis phase.
Interphase
Actually, DNA synthesis occurs in the interphase stage, after the G1 checkpoint and before the G2 checkpoint, in the synthesis period, sometimes referred to as the 'S' phase, though it is not in fact a phase of mitosis, but rather a part of the Interphase as a whole. I hope this is more helpful than the previous answer of; "nobody knows IDIOT."
Because protein synthesis is taking place.
Within the Cell cycle, Dna synthesis occurs during the S [synthesis] phase.
The DNA is synthesized during the S-phase of the cell's Interphase (G1, S, G2)... That is why it is called the "S" phase-- standing for the word "synthesis".
DNA replication