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When do the spindle fibers shorten?

Updated: 8/9/2023
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13y ago

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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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13y ago
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14y ago

Imma Be right, Its Telophase. ;)

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Q: When do the spindle fibers shorten?
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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?

The spindle fibers disassemble during anaphase. As the spindle fibers shorten during anaphase, they separate the chromatids from one another and then move them to opposite poles. The answer above stating that the Spindle Fibers disassemble during anaphase is incorrect. If they were to disassemble at anaphase it would completely halt the cell division process. The spindle fibers disassemble during telophase.


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 happends to the spindle fibers in telophase?

Spindle fibers disassemble.


Chromatids migrate toward poles as spindle fibers shorten during?

metaphase , well double stranded chromosomes are .

Related questions

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.


The two chromatids move toward opposite poles as the spindle fibers attached to them shorten?

Anaphase


Spindle fibers begin to disappear in what phase?

The spindle fibers disassemble during anaphase. As the spindle fibers shorten during anaphase, they separate the chromatids from one another and then move them to opposite poles. The answer above stating that the Spindle Fibers disassemble during anaphase is incorrect. If they were to disassemble at anaphase it would completely halt the cell division process. The spindle fibers disassemble during telophase.


What structure forms in prophase along which the chromosomes called?

The answer is 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.


What happends to the spindle fibers in telophase?

Spindle fibers disassemble.


Chromatids migrate toward poles as spindle fibers shorten during?

metaphase , well double stranded chromosomes are .


What are spindle fibers composed of?

spindle fibers are composed of what? Answer: Microtubules


Which type of cell has spindle fibers?

Animal cells have spindle fibers in them.


Fibers in the spindle that attach to the centromere of the chromosomes?

Fibers in the spindle that attach to the centromere of the chromosomes are called what?


Cell structures made of individual microtube fibers that are involved in moving chromosomes during cell division are called?

spindle fibers