There are 3 distinct sub-phases to interphase: Interphase · Gap 1 (G 1) · Synthesis (S Phase) · Gap 2 (G 2) Slide 13 / 103 Gap 1 (G 1 phase) The cell increases in size. The cell increases its supply of proteins, particularly those used in the duplication process.
Top Answer C )Explanation: Inte rphase is the phase in which cell prepares for the division and also called preparatory phase. It is divided into 3 sub phases- G1, S and G2. During the S phase of cell cycle DNA replication occurs. Thus the correct answer is option C. Sign up to view the full answer View Full Answer Why Join Course Hero?
- During interphase , cells grow and duplicate their internal structures before they can divide during mitosis . The duplication occurs during S phase in interphase , this is where the cell duplicates its chromosomes . Duplication is important because it ensure that the system is ready for cell division .
May 26, 2020 · 41. The cell cycle checkpoints are responsible for checking that the cell is prepared to move on to the next stage in cell division. For example, the G1-to-S checkpoint ensures that the cell has all the components and signals necessary to go on to S phase and that the appropriate signals are present. The G2 checkpoint checks whether the B. DNA has been …
DNA replicationDuring interphase, G1 involves cell growth and protein synthesis, the S phase involves DNA replication and the replication of the centrosome, and G2 involves further growth and protein synthesis. The mitotic phase follows interphase.
During S phase, the DNA is replicated, yielding sister chromatids.
During the S phase, DNA is duplicated into two sister chromatids, and centrosomes, which give rise to the mitotic spindle, are also replicated. In the G2 phase, energy is replenished, new proteins are synthesized, the cytoskeleton is dismantled, and additional growth occurs.Aug 14, 2020
G1 phase. G1 is an intermediate phase occupying the time between the end of cell division in mitosis and the beginning of DNA replication during S phase. During this time, the cell grows in preparation for DNA replication, and certain intracellular components, such as the centrosomes undergo replication.
Interphase is composed of G1 phase (cell growth), followed by S phase (DNA synthesis), followed by G2 phase (cell growth). At the end of interphase comes the mitotic phase, which is made up of mitosis and cytokinesis and leads to the formation of two daughter cells.
Which of the following is a function of the S phase in the cell cycle? The synthesis of sister chromatids, DNA replication occurs during S phase and results in two sister chromatids for each original chromosome.
In the synthesis, or S, phase DNA is copied. Every new cell needs a set of DNA. This means that at some point in the cell cycle, before the cell can divide in M phase, DNA must be replicated. This replication occurs during S phase. The S stands for synthesis.
Two key events take place during S phase in animal cells, DNA replication and duplication of centriole.Mar 12, 2022
Interphase is the portion of the cell cycle that is not accompanied by gross changes under the microscope, and includes the G1, S and G2 phases. During interphase, the cell grows (G1), replicates its DNA (S) and prepares for mitosis (G2). A cell in interphase is not simply quiescent.
The correct answer is Prophase. Prophase which is the first stage of mitosis follows the S and G2 phases of interphase.
The G1 phase, gap 1 phase, or growth 1 phase, is the first of four phases of the cell cycle that takes place in eukaryotic cell division. In this part of interphase, the cell synthesizes mRNA and proteins in preparation for subsequent steps leading to mitosis.
During the G2 phase, extra protein is often synthesized, and the organelles multiply until there are enough for two cells. Other cell materials such as lipids for the membrane may also be produced. With all this activity, the cell often grows substantially during G2.Mar 18, 2019
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