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Zinaida [17]
4 years ago
7

Describe the phases of the cell cycle. be sure to include the name of each phase and what is occurring within the cell during ea

ch phase.
Biology
1 answer:
julsineya [31]4 years ago
7 0

Actively dividing eukaryote cells pass through a series of stages known collectively as the cell cycle: two gap phases (G1 and G2); an S (for synthesis) phase, in which the genetic material is duplicated; and an M phase, in which mitosis partitions the genetic material and the cell divides.

 

<span><span>G1 phase. Metabolic changes prepare the cell for division. At a certain point - the restriction point - the cell is committed to division and moves into the S phase.</span><span>S phase. DNA synthesis replicates the genetic material. Each chromosome now consists of two sister chromatids.</span><span>G2 phase. Metabolic changes assemble the cytoplasmic materials necessary for mitosis and cytokinesis.</span><span>M phase. A nuclear division (mitosis) followed by a cell division (cytokinesis).</span></span>

The period between mitotic divisions - that is, G1, S and G2 - is known as interphase.

<span>Mitosis is a form of eukaryotic cell division that produces two daughter cells with the same genetic component as the parent cell. Chromosomes replicated during the S phase are divided in such a way as to ensure that each daughter cell receives a copy of every chromosome. In actively dividing animal cells, the whole process takes about one hour.</span>

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