the stages of mitosis and what happens in each?
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Mitosis is the process in which the nucleus of a eukaryotic cell divides. During this process, sister chromatids separate from each other and move to opposite poles of the cell. This happens in four phases, called prophase, metaphase, anaphase, and telophase.
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In meiosis, prophase, metaphase, anaphase and telophase occur twice. The first round of division is special, but the second round is more like mitosis. In mitosis, prophase, metaphase, anaphase and telophase occur once. Chromosomes condense and the centrosomes begin to form an early spindle.
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During this process, sister chromatids separate from each other and move to opposite poles of the cell. This happens in four phases, called prophase, metaphase, anaphase, and telophase. Cytokinesis is the final stage of cell division, during which the cytoplasm splits into two and two daughter cells form.
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Knowing this, metaphase is one of the most frequently observed stages of mitosis as this is the stage that the cell organizes its chromosomes along the metaphase plate (i.e, the equator of the cell). Many cells will reach this stage, but not continue to complete mitosis as the cell cycle is controlled in checkpoints.
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In order to accomplish this goal, mitosis occurs in four discrete, consistently consecutive phases: 1) prophase, 2) metaphase, 3) anaphase, and 4) telophase. We also have an in-depth post on mitosis here, so you can think of this as an intro to what mitosis is and how it works!
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Phases of the Cell Cycle The cell cycle is a 4-stage process consisting of Gap 1 (G1), Synthesis, Gap 2 (G2) and mitosis.
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Once a cell has completed interphase and is ready for cell division, it proceeds through four separate stages of mitosis (prophase, metaphase, anaphase, and telophase). Telophase is followed by the division of the cytoplasm (cytokinesis), which generates two daughter cells.
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In eukaryotes, the cell cycle consists of a long preparatory period, called interphase. Interphase is divided into G1, S, and G2 phases. The mitotic phase begins with karyokinesis (mitosis), which consists of five stages: prophase, prometaphase, metaphase, anaphase, and telophase.
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During interphase, the cell grows, performs routine life processes, and prepares to divide. The mitotic phase of the cell cycle in an eukaryotic cell occurs in two major steps: mitosis, when the nucleus divides; and cytokinesis, when the cytoplasm divides and two daughter cells form.
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Answer: Both mitosis and meiosis are processes of cell division. They use the same steps for cell division, including prophase, metaphase, anaphase and telophase.
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During mitosis, a eukaryotic cell undergoes a carefully coordinated nuclear division that results in the formation of two genetically identical daughter cells. Mitosis itself consists of five active steps, or phases: prophase, prometaphase, metaphase, anaphase, and telophase.
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Mitosis actually occurs in four phases. The phases are called prophase, metaphase, anaphase, and telophase. They are shown in Figure 7.3.
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Interphase is often included in discussions of mitosis, but interphase is technically not part of mitosis, but rather encompasses stages G1, S, and G2 of the cell cycle. The cell is engaged in metabolic activity and performing its prepare for mitosis (the next four phases that lead up to and include nuclear division).
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During mitosis, a cell's DNA is duplicated and the two new cells are exactly identical to the parent cell. Mitosis consists of four phases: prophase, metaphase, anaphase and telophase. Two additional phases, interphase and cytokinesis, occur before and after mitosis.
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Panel 18-1. The Principal Stages of M Phase (Mitosis and Cytokinesis) in an Animal Cell. The five stages of mitosis—prophase, prometaphase, metaphase, anaphase, and telophase—occur in strict sequential order, while cytokinesis begins in anaphase and continues through telophase.
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They are also genetically identical to the parental cell. Mitosis has five different stages: interphase, prophase, metaphase, anaphase and telophase. The process of cell division is only complete after cytokinesis, which takes place during anaphase and telophase.
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Telophase and Cytokinesis Mitosis ends with telophase, or the stage at which the chromosomes reach the poles. The nuclear membrane then reforms, and the chromosomes begin to decondense into their interphase conformations. Telophase is followed by cytokinesis, or the division of the cytoplasm into two daughter cells.