During the S (synthesis) stage - after G1 and before G2.
DNA is replicated during the S phase of the cell cycle. This phase is when the cell synthesizes a copy of its DNA to prepare for cell division.
Interphase. Cells spend the majority of the time in interphase, where they grow and perform their life functions.
Interphase includes three phases: G1 phase, where the cell grows and prepares for DNA replication; S phase, where DNA is synthesized and replicated; and G2 phase, where the cell continues to grow and prepares for cell division.
DNA replication occurs during the S or synthesis stage of interphase.
The G1 phase in the cell cycle stands for "gap 1" phase. During G1, the cell grows in size, synthesizes proteins, and carries out its normal cellular functions. At the end of G1, the cell decides whether to continue the cell cycle, enter a resting phase (G0), or undergo cell death.
DNA is replicated during the S phase of the cell cycle. This phase is when the cell synthesizes a copy of its DNA to prepare for cell division.
Interphase. Cells spend the majority of the time in interphase, where they grow and perform their life functions.
DNA replication occurs during the S phase of the cell cycle. This phase is sandwiched between the G1 phase (gap 1) and the G2 phase (gap 2). The S phase is when the cell's DNA is replicated before cell division occurs.
The S phase of the cell cycle
In most eukaryotes mitochondria replicate and fuse all the time; they don't have to replicate during the cell cycle. In cells that have only one mitochondrion (like kinetoplastids) mitochondria follow the same replication process as the cells (G1, S, G2 and M phases).
The lysogenic cycle incorporates its DNA into the cells DNA, lets the cell resume normal growth by reproduction, so that all the cells have viral DNA and lyse to produce more viruses than ever. The lyctic cycle merely infects and lyses one cell at a time.
During development from a fertilized egg, the cell cycle is short to allow for rapid cell division and growth. This rapid cell division is essential for the embryo to develop into a complex multicellular organism within a relatively short period of time. Additionally, shorter cell cycles ensure that the genetic material is faithfully replicated and distributed to daughter cells accurately during each division.
Interphase includes three phases: G1 phase, where the cell grows and prepares for DNA replication; S phase, where DNA is synthesized and replicated; and G2 phase, where the cell continues to grow and prepares for cell division.
By the time the cell is in telophase, the chromosomes have already replicated, condensed, lined up, and migrated to their poles. During telophase the chromosomes are separating as far apart as possible preparing the cell for cytokinesis (division of cytoplasm).
Cell cycle Is the period of time from the beginning of one cell division to the beginning of the next
DNA replication occurs during the S or synthesis stage of interphase.
Cells are in the Interphase 90% of the total time during cell cycle. In this phase cells grow and copies chromosomes in preparation for division. Interphase has 3 sections: G1,S and G2. Just during the S phase occur DNA synthesis. In G1 cell produces it's organelles and in G2 the preparations are completed.