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What is spindle fibre?
The stuff that comes from the centrioles of a cell that pull apart the chromosomes during mitosis.
What are the jobs of protein fibers during mitosis-?
During mitosis, protein fibers attach to the chromosomes on opposite ends of the cell, then help to pull them apart so that the cell can divide into daughter cells with copies of all the chromosomes.
What is the name of the fibers that line the chromosomes up at the equator of a cell during mitosis?
Spindle fibers from the centrioles attach to the chromosomes and pull in opposite directions at the metaphesal plate.
Do the chromosomes separate once in both mitosis and meiosis?
No. In mitosis the chromosomes separate once. In meiosis, in anaphase I, homologous chromosomes separate, but are still attached as sister chromatids. In anaphase II, the sister chromatids separate. So there are two chromosome separations in meiosis.
What would be the role of the centrioles?
During Mitosis, during metaphase, the centrioles grow spindle fibers which attach to the chromosomes located currently on the centrosome. They then pull one half of the chromosome to their side of the cell, this process is called anaphase. They then disappear.
What structures pull the chromosomes apart?
The spindle fibers, which are composed of microtubules, pull the chromosomes apart during cell division. These fibers attach to the centromeres of the chromosomes and help guide them to opposite poles of the cell during mitosis or meiosis.
What is spindle fibre?
The stuff that comes from the centrioles of a cell that pull apart the chromosomes during mitosis.
What is the role of the spindle fibers during mitosis?
They pull the sister chromatids apart.
What are the jobs of protein fibers during mitosis-?
During mitosis, protein fibers attach to the chromosomes on opposite ends of the cell, then help to pull them apart so that the cell can divide into daughter cells with copies of all the chromosomes.
When during the cell cycle are chromotomes visible?
Chromosomes are visible during cell division, specifically during mitosis and meiosis. This is when the chromosomes condense and become more distinguishable. In interphase, the chromosomes are less condensed and not easily visible as individual structures.
What is the name of the fibers that line the chromosomes up at the equator of a cell during mitosis?
Spindle fibers from the centrioles attach to the chromosomes and pull in opposite directions at the metaphesal plate.
What pulls chromosomes during during mitosis?
During metaphase, the spindles, or microtubules, all start to move to opposite ends. There, they grab the chromatids and pull them back to their opposite sides.
Do the chromosomes separate once in both mitosis and meiosis?
No. In mitosis the chromosomes separate once. In meiosis, in anaphase I, homologous chromosomes separate, but are still attached as sister chromatids. In anaphase II, the sister chromatids separate. So there are two chromosome separations in meiosis.
What is the role of spindle fibers in mitosis?
They pull the sister chromatids apart.
What is a cytoskeletal that pulls chromosomes apart?
The mitotic spindle is a cytoskeletal structure that pulls apart chromosomes during mitosis. It is composed of microtubules that attach to the chromosomes and exert force to ensure accurate separation of genetic material.
What would be the role of the centrioles?
During Mitosis, during metaphase, the centrioles grow spindle fibers which attach to the chromosomes located currently on the centrosome. They then pull one half of the chromosome to their side of the cell, this process is called anaphase. They then disappear.
Why does mitosis have to have microtubules in order to occur?
Mitosis require microtubules because they bind to the chromosomes and pull them to each pole of the cell. The cell can then divide with the respective chromosomes on separate halves of the cell.
