0
What is a function of those spindle microtubules that do not attach to kinetochores?
microtubules attached to a chromosome
Wiki Answers respondents need to start answering questions with a greater sense of purpose. People do not ask questions to receive a terse, slightly correct answer. They want a valid answer to a valid question. As per this one, kinetochore microtubules are NOT just microtubules attached to a chromosome. They are microtubules attached to kinetochores on the centromeres of chromatids. Two chromatids make up a "chromosome" and each chromatid has a centromere with a kinetochore on it. When microtubules from the spindle pole attach to the kinetochores on each side of the "chromosome" the two kinetochore microtubules (from opposite poles of the cell) successfully pull the "chromosome" apart and provide each new developing daughter cell nucleus with a chromatid from that chromatid pair.
What else can I help you with?
In mitosis what pulls the sister chromatids apart?
During mitosis, the mitotic spindle, which is made of microtubules, pulls the sister chromatids apart. The microtubules attach to the kinetochores located on the centromere of each sister chromatid and exert force to move them towards opposite poles of the cell.
Which of the following is true of kinetochores?
Kinetochores are protein structures located at the centromere region of a chromosome. They play a key role in the attachment of chromosomes to the microtubules of the mitotic spindle during cell division. Errors in kinetochore function can lead to chromosome mis-segregation and genetic abnormalities.
What is responsible for moving chromosomes during mitosis?
The mitotic/meiotic spindle originating from the centrosomes and composed of microtubule subunits. Kinetochores provide the motive power.Read more: What_structure_is_responsible_for_moving_the_chromosomes_during
What form to help attach and move chromatids to the opposite poles of the cell?
Spindle Fibers
What structures allow chromosomes to separate and move during mitosis?
The spindle apparatus, made up of microtubules, plays a key role in chromosome separation and movement during mitosis. The centrosomes help organize and control the spindle apparatus. The kinetochores, located at the centromere of each chromosome, attach to the microtubules and facilitate chromosome movement.
When do microtubules attach to kinetochores?
Microtubules attach to kinetochores during prometaphase of mitosis, forming the mitotic spindle apparatus. This attachment is crucial for proper chromosome alignment and segregation during cell division.
When does the spindle attach to the kinetochores?
The spindle attaches to the kinetochores during prometaphase, where the microtubules from the spindle apparatus interact with the kinetochores on sister chromatids. This attachment is essential for proper chromosome alignment and segregation during cell division.
In mitosis what pulls the sister chromatids apart?
During mitosis, the mitotic spindle, which is made of microtubules, pulls the sister chromatids apart. The microtubules attach to the kinetochores located on the centromere of each sister chromatid and exert force to move them towards opposite poles of the cell.
Which of the following is true of kinetochores?
Kinetochores are protein structures located at the centromere region of a chromosome. They play a key role in the attachment of chromosomes to the microtubules of the mitotic spindle during cell division. Errors in kinetochore function can lead to chromosome mis-segregation and genetic abnormalities.
What phase do microtubules attach to kinetochores?
Microtubules attach to kinetochores during the prometaphase stage of cell division. This attachment is essential for the proper alignment and segregation of chromosomes during mitosis.
At prometaphase of mitosis?
During prometaphase, the nuclear envelope fragments and the spindle microtubules are able to reach the chromosomes. Each of the two chromatids of each chromosome, at this point, has a kinetochore. The microtubules attach to the kinetochores, forming "kinetochore microtubules" which basically jerk the chromosomes back and forth.
What is responsible for moving chromosomes during mitosis?
The mitotic/meiotic spindle originating from the centrosomes and composed of microtubule subunits. Kinetochores provide the motive power.Read more: What_structure_is_responsible_for_moving_the_chromosomes_during
What form to help attach and move chromatids to the opposite poles of the cell?
Spindle Fibers
What is found in animal cells and aid in cellular reproduction?
There are a number of things. A pair of centrioles which are organizational sites for microtubules. The nuclear membrane dissolves and proteins attach to the centromeres creating the kinetochores. Microtubules attach at the kinetochores and the chromosomes begin moving. New membranes form around the daughter nuclei. The chromosomes disperse and are no longer visible under the light microscope. The spindle fibers disperse, and cytokinesis or the partitioning of the cell begins.
What structures allow chromosomes to separate and move during mitosis?
The spindle apparatus, made up of microtubules, plays a key role in chromosome separation and movement during mitosis. The centrosomes help organize and control the spindle apparatus. The kinetochores, located at the centromere of each chromosome, attach to the microtubules and facilitate chromosome movement.
What does kinetochore do?
The kinetochore is a protein structure located at the centromere of a chromosome. It plays a crucial role in cell division by attaching the chromosome to the mitotic spindle during mitosis and meiosis, ensuring that the genetic material is evenly distributed between daughter cells.
What is the function of kinetochores in cell division?
Kinetochores are protein structures that form on the centromere of chromosomes during cell division. Their main function is to attach to spindle fibers and help separate the chromosomes during mitosis and meiosis. This ensures that each daughter cell receives the correct number of chromosomes.
