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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. After cytokinesis, the end result would be four daughter cells, otherwise known as the tetrad, being produced with half the number of chromosomes as compared to the parent cell. In mitosis, spindle fibers attached to the kinetochores of the chromosome shorten only during anaphase to separate the sister chromatids away from the centromere to opposite poles in preparation for cytokinesis where there would be a cleavage furrow deepening at the equator of the cell. The end result of mitosis are two daughter cells with identical number of chromosomes as the parent cell.
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What is spindle fibers pull the sister chromatids apart?
During anaphase I of meiosis the spindle fibers pull apart in homologous chromosomes. The spindle fibers are composed of micro-tubules. The spindle fibers continue to shorten during anaphase in order to bring the chromosomes at two poles.During anaphase I of meiosis the spindle fibers pull apart in homologous chromosomes. The spindle fibers are composed of micro-tubules. The spindle fibers continue to shorten during anaphase in order to bring the chromosomes at two poles.
Spindle fibers begin to disappear in what phase?
Spindle fibers begin to disappear in the anaphase of mitosis or meiosis. During anaphase, the sister chromatids separate and move towards opposite poles of the cell, leading to the disassembly of the spindle fibers.
What is the name for the fibers that become visible during metaphase?
The strands are called chromatids. Druing prophase, the chromosomes coil and shorten and the nuclear memebrane dissolves. Each chromosome is made up of a pair of strands called chromatids, which are connected by a spindle of fibers called a centromere.
Mitosis could not proceed if a mutation interrupted the assembly of?
the spindle fibers. Spindle fibers are essential for separating the chromosomes during cell division. Without proper spindle formation, the chromosomes would not be able to align and segregate correctly between the two daughter cells.
Chromosomes move along these fibers?
Spindle fibers
The two chromatids move toward opposite poles as the spindle fibers attached to them shorten?
Anaphase
What is spindle fibers pull the sister chromatids apart?
During anaphase I of meiosis the spindle fibers pull apart in homologous chromosomes. The spindle fibers are composed of micro-tubules. The spindle fibers continue to shorten during anaphase in order to bring the chromosomes at two poles.During anaphase I of meiosis the spindle fibers pull apart in homologous chromosomes. The spindle fibers are composed of micro-tubules. The spindle fibers continue to shorten during anaphase in order to bring the chromosomes at two poles.
What structure forms in prophase along which the chromosomes called?
The answer is Spindle Fibers.
Spindle fibers begin to disappear in what phase?
Spindle fibers begin to disappear in the anaphase of mitosis or meiosis. During anaphase, the sister chromatids separate and move towards opposite poles of the cell, leading to the disassembly of the spindle fibers.
What is the name for the fibers that become visible during metaphase?
The strands are called chromatids. Druing prophase, the chromosomes coil and shorten and the nuclear memebrane dissolves. Each chromosome is made up of a pair of strands called chromatids, which are connected by a spindle of fibers called a centromere.
What evidence suggests that during anaphasespindle fibers shorten at the kinetochore and not at the base of the mitotic spindle?
Bleaching the middle of fluorescing microtubules reveals the answer to this question. The bleached section does not move during the shortening of the spindle fibers which indicates that the shortening is occurring near the kinetochore.
Which type of cell has spindle fibers?
Animal cells have spindle fibers in them.
Cell structures made of individual microtube fibers that are involved in moving chromosomes during cell division are called?
Spindle fibers. These structures form the mitotic spindle and play a crucial role in separating chromosomes during cell division.
What are the fibers that shorten and pull the chromatids apart called?
The fibers that shorten and pull the chromatids apart are called microtubules. During cell division, microtubules form the spindle apparatus and attach to the chromosomes to facilitate their separation.
What organelles form the asters and the spindle fibers?
The centrioles in animal cells form the asters and the spindle fibers.
Mitosis could not proceed if a mutation interrupted the assembly of?
the spindle fibers. Spindle fibers are essential for separating the chromosomes during cell division. Without proper spindle formation, the chromosomes would not be able to align and segregate correctly between the two daughter cells.
How do spindle fibers help distribute chromosomes to daughter cells?
Spindle fibers are crucial for the proper distribution of chromosomes during cell division. They form a structure called the mitotic spindle that attaches to the chromosomes at their centromeres through protein complexes known as kinetochores. As the spindle fibers contract and shorten, they pull the sister chromatids apart toward opposite poles of the cell, ensuring that each daughter cell receives an identical set of chromosomes. This precise mechanism is essential for maintaining genetic stability in the resulting cells.
