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Centrioles

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βˆ™ 14y ago
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The centrosome, specifically the pair of centrioles within it, provides the material for spindle formation in animal cells. The centrioles duplicate during the cell cycle and serve as the organizing centers for microtubules that make up the spindle apparatus.

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Q: What provides material for spindle formation?
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Why does the vincristine drug damages the mitotic spindle?

Vincristine disrupts the formation and function of the mitotic spindle by binding to tubulin, a protein that helps in spindle formation. This interferes with the normal process of cell division, leading to mitotic arrest and ultimately cell death.


What directs the formation of the mitotic spindle?

The mitotic spindle is directed in its formation by microtubules, which are dynamic protein filaments that organize into a bipolar structure during cell division to help separate the chromosomes. Microtubules are controlled by motor proteins and regulatory proteins that ensure proper spindle formation and function. Various signaling pathways and cell cycle checkpoints also play a role in orchestrating the assembly and positioning of the mitotic spindle within the cell.


What is a sentence where both spindle and centrioles are used?

During cell division, the spindle fibers attach to the centrioles to help separate the chromosomes into two daughter cells.


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.


Do spindle fibers form in plant cells undergoing mitosis?

Spindle fibers do not form in plant cells during mitosis. Plant cells undergo mitosis using a specialized structure called the phragmoplast, which helps in the formation of the cell plate during cytokinesis. The phragmoplast guides the deposition of new cell wall material between the daughter cells.

Related questions

What cell organelle controls cell reproduction?

Centrosome. It is a pair of centrioles plus pericentriolar material. The pericentriolar material contains tubulins, which are used for growth of the mitotic spindle and microtubule formation. The mitotic spindle are used in reproduction. Reference: Principles of Anatomy and Physiology. 12th Ed. Author: Tortora, Derrickson.


Material around centrioles from which the mitotic spindle grows?

The pericentriolar material (PCM) is a dense network of protein fibers and complexes located around centrioles. It serves as the primary site from which microtubules of the mitotic spindle nucleate and grow during mitosis. The PCM plays a crucial role in organizing and anchoring microtubules to ensure proper spindle formation and chromosome segregation.


Are Centrioles necessary for spindle formation?

Centrioles are important for spindle formation in animal cells, as they help to organize the microtubules that make up the spindle apparatus. However, some cells, such as plant cells, can form functional spindles without centrioles.


What is the site of spindle formation?

Spindle formation occurs in the centrosome, a cellular organelle that serves as the main microtubule-organizing center in animal cells. The centrosome helps to assemble and organize the microtubules that make up the spindle apparatus during cell division.


Why does the vincristine drug damages the mitotic spindle?

Vincristine disrupts the formation and function of the mitotic spindle by binding to tubulin, a protein that helps in spindle formation. This interferes with the normal process of cell division, leading to mitotic arrest and ultimately cell death.


One event occurring during prophase is?

The begining of the formation of the mitotic spindle-During prophase, the mitotic spindle begins to form.


Are centrioles required for spindle formation?

Centrioles are important for spindle formation, as they serve as the organizing centers for microtubules during cell division. However, some cells can still form spindles even if they lack centrioles, suggesting that centrioles are not absolutely required for spindle formation in all cases.


What directs the formation of the mitotic spindle?

The mitotic spindle is directed in its formation by microtubules, which are dynamic protein filaments that organize into a bipolar structure during cell division to help separate the chromosomes. Microtubules are controlled by motor proteins and regulatory proteins that ensure proper spindle formation and function. Various signaling pathways and cell cycle checkpoints also play a role in orchestrating the assembly and positioning of the mitotic spindle within the cell.


Does crossing over involve centrioles?

No, crossing over does not involve centrioles. Crossing over occurs during meiosis when homologous chromosomes exchange genetic material, while centrioles are organelles involved in organizing the spindle fibers during cell division.


What is an organelle found in animal cells that aids in spindle formation?

ribosomes and plants


Material used for machine tool spindle?

It is EN-24 !!


Differences between metaphase 1 and metaphase 2?

1. In metaphase 1 spindle formation is completed In metaphase 2 spindle formation take place 2. Bivalent are involved in metaphase 1 Bivalents are not involved in metsphase 2