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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).
Interphase
There are five stages of the cell cycle. G1 -the first three S -are all part of G2 -Interphase M <--- this is mitosis C -Cytokinesis between interphase (g1, s, g2) and cytokinesis
There is no DNA of mitosis. Before mitosis, the DNA must be replicated, which occurs during interphase of the cell cycle.
The S phase of the cell cycle (mid-interphase).There are 4 main phases. The "S phase" of the cell cycle is when the cell duplicates the genetic information, or DNA. * G1 = growth and preparation of the chromosomes for replication * S = synthesis of DNA by semi-conservative replication and duplication of the chromosome * G2 = preparation for mitosis * M = mitosis
Chromosomes are replicated during DNA replication, which occurs during 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."
DNA replication is technically not part of mitosis. Mitosis is simply the splitting of the nucleus. DNA replication however is part of the interphase, which is part of the cell cycle. The DNA replication is also known as the S phase in the interphase. In this part, the DNA is replicated creating two sets of all genetic information.
replication of DNA takes place during the interphase
Interphase @jamazins
synthesis, which occurs during the synthesis phase in interphase