which step of mitosis involves the spindle fibers pulling the chromosomes to opposite ends of the cell?
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Mitosis During prophase, chromosomes in the nucleus condense. Pairs of centrioles move to opposite sides of the nucleus. Spindle fibers begin to form a bridge between the ends of the cell. During prometaphase, the nuclear envelope around the chromosomes breaks down. Now there is no nucleus and the sister chromatids are free.
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Animal Cell Mitosis exists and is an alternate of . In this stage the nuclear envelope breaks down so there is no longer a recognizable nucleus. Some mitotic spindle fibers elongate from the centrosomes and attach to kinetochores, protein bundles at the centromere region on the chromosomes where sister chromatids are joined. Other spindle fibers elongate but instead of attaching to chromosomes, overlap each other at the cell center.
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What are the functions of the spindle fibers and the centrioles? Spindle fibers shorten during anaphase I and anaphase II in meiosis in order for both the separation of the homologous chromosomes and the sister chromatids to opposite poles … before telophase I and II.
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Cell Division Test Spindle fibers pull each homologous chromosome pair toward opposite ends of the cell. The seperated chromosomes then cluster at opposite ends of the cell. Telophase 1 and 2
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What Happens In Each Phase Of Mitosis During anaphase, the spindle fibers pull the identical sister chromatids to opposite sides (poles) of the parent cell. The fourth and final step of mitosis is telophase. During telophase, two nuclear envelopes reform around the separated DNA and the DNA de-condenses so that chromosomes are no longer visible. One can also see that the plasma membrane begins to constrict between the newly formed nuclei.
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chapter 8 bio test The copies move to opposite sides of the cell as the cell elongates further, and the cell pinches off into two daughter cells. Mitosis and Cytokinesis: Mitosis is a multiple-phase process in which the nucleus of a cell is broken down and the copies of chromosomes are separated to opposite sides of the cell, by means of the mitotic spindle, where a new nucleus begins to form.
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- What forms to help attach and move chromatids to the opposite poles of the cells? The mitotic spindle fibers formed of tubulin subunits. What is the cell structure that joins two sister chromatids of a chromosome? The cell structure that joins two sister chromatids into one single  chromosome is called the centromere. This is at the center of the  sister chromatids.
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Mitosis These stages are prophase, prometaphase, metaphase, anaphase, and telophase. During mitosis, the chromosomes, which have already duplicated, condense and attach to spindle fibers that pull one copy of each chromosome to opposite sides of the cell. The result is two genetically identical daughter nuclei.
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Stages of the Cell Cycle - Mitosis (Metaphase, Anaphase and Telophase) The major event of Anaphase is the sister chromatids moving to opposite poles of the cells, due to the action of the condensing spindle fibres. The chromatids only start separating when the pressure is sufficient to split the centromere. At this point, each chromatid effectively becomes a chromosome.
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mitosis As mitosis begins, the chromosomes line up along the center of the cell by attaching to the fibers of the cell spindle. The pairs of chromatids then separate, each strand of a pair moving to an opposite end of the cell.
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Mitosis As mitosis progresses, the microtubules attach to the chromosomes, which have already duplicated their DNA and aligned across the center of the cell. The spindle tubules then shorten and move toward the poles of the cell. As they move, they pull the one copy of each chromosome with them to opposite poles of the cell. This process ensures that each daughter cell will contain one exact copy of the parent cell DNA. Mitosis consists of five morphologically distinct phases: prophase, prometaphase, metaphase, anaphase, and telophase.
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Why is it necessary for cells chromosomes to be distributed to its daughter cells in such a precise manner? the spindle apparatus pulls the sister cromatids to either side of the cell. the cell then divides and creates two daughter cells with the exact copies of chromosomes. 2 people found this useful.
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- Definition: Spindle fibers are aggregates of microtubules that move chromosomes during cell division. During prophase of mitosis, spindle fibers form at opposite poles of the cell. During metaphase, spindle fibers extend from the cell poles toward the midpoint of the cell known as the metaphase plate.
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During _____, chromatids separate and move to opposite ends of the cell? Anaphase, from the ancient Greek ἀνά (up) and φάσις (stage), is the stage of mitosis when chromosomes separate in a eukaryotic cell. Each chromatid moves to opposite poles of the cell, the opposite ends of the mitotic spindle, near the microtubule organizing centers. During this stage, anaphase lag could happen.
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spindle fibers The spindle is necessary to equally divide the chromosomes in a parental cell into two daughter cells during both types of nuclear division: mitosis and meiosis. During mitosis, the spindle fibers are called the mitotic spindle. Meanwhile, during meiosis, the spindle fibers are referred to as the meiotic spindle.
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After chromosomes are formed, during which phase of mitosis do the chromosomes attach to the spindle fibers by their centromeres? Metaphase is when the chromosomes attach to the spindle fibers by their centromeres. This can be confused with the phases:prophase where the spindle fibers form a bridge between the ends of the cell, and anaphase where the spindle fibers draw the chromosomes to the opposite ends of the cell(the cell splits up) Report.
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What happens in Prophase, metaphase, anaphase, and telophase? Metaphase: Spindle pulls and pushes the centromeres until the chromosomes are lined up across the equator of the spindle Anaphase: Spindle fibers pull on the centromeres until they split; spindle pulls sister chromatids to opposite poles of the spindle.
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Mitosis During anaphase A, the cohesins that bind sister chromatids together are cleaved, forming two identical daughter chromosomes. Shortening of the kinetochore microtubules pulls the newly formed daughter chromosomes to opposite ends of the cell.
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What is the phase of mitosis in which the chromosomes move to opposite poles of the cell? During which phase of mitosis do the paired chromatids break apart at the centromere to become individual chromosomes before moving toward opposite poles of the cell?
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During _____, chromatids separate and move to opposite ends of the cell? Best Answer: In Anaphase sister chromatids separate and become daughter chromosomes that move toward the spindle poles. In this way, each pole receives the same number and kinds of chromosomes as the parent cell. Source(s): Biology Textbook, tenth edition, Sylvia S. Mader. newbiostudent · 7 years ago.
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Mitosis and Cell Division Flemming divided mitosis into two broad parts: a progressive phase, during which the chromosomes condensed and aligned at the center of the spindle, and a regressive phase, during which the sister chromatids separated.
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spindle The spindle grows forth from the centrosomes and attaches to the chromosomes after the latter have been duplicated, and the nuclear membrane dissolves. Once attached, the spindle fibers contract, pulling the duplicate chromosomes apart to opposite poles of the dividing cell. See more at meiosis, mitosis.
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What happens in Prophase, metaphase, anaphase, and telophase? chromosomes coil assembly of spindle apparatus completed. Metaphase: chromosome line up on equatorial plate of cell. Anaphase: fibers of spindle apparatus pull each pair of sister chromatids apart. One goes to one polr of the cell, the other goes to the other pole. Telophase: nuclear membrane re-forms. Nucleolus re-forms. Chromsomes uncoil. Spindle apparatus disassembled.
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- spindle fibers A collection of microtubules attached to a centromere during mitosis and meiosis that are responsible for the movement of the chromosomes to opposite poles. Spindle fibers align the chromosomes along the middle of the cell nucleus. The protein fibers formed during prophase of nuclear division; chromosomes attach to these fibers at the centromere. spindle The aggregation of microtubules that is involved in the movement and separation of chromosomes during mitosis and meiosis.
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Mitosis The duplicated chromosomes then attach to the spindle, align at the cell equator, and move apart as the spindle microtubules retreat toward opposite poles of the cell. Each set of chromosomes is then surrounded by a nuclear membrane, and the parent cell splits into two complete daughter cells.
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ARCHIVED: In SPSS for Windows, how can I copy a chart into a Windows word processing program? 1 Create the desired chart or graph in SPSS. 2  In the SPSS Viewer window, select the chart or graph by clicking it. 3  From the menu, choose. ( 4 You can also right-click the chart and choose, or select the chart and press Ctrl-c 5  .). Minimize SPSS, and then open a new or existing word processing document. 6  From the menu, choose.t's also possible to export a chart or output element directly to a document file: 1  Create the desired chart or graph in SPSS. 2  In the SPSS Viewer window, select the chart or graph by clicking it. 3  In the Objects to Export section of the dialog box, choose. 4  In the Document section, from the Type drop-down box, choose.