they are microtubles, they move the chromosomes to the equasion (metaphase plate) of the cell. they also make up the spindle fibers.
Microtubules attach to chromosomes at the kinetochore, a protein structure located at the centromere region of each chromosome. This attachment ensures accurate segregation of chromosomes during mitosis.
The kinetochore forms at the centromere region of a chromosome. The centromere is a specialized DNA sequence where the kinetochore proteins assemble to help in the attachment of spindle fibers during cell division.
During mitosis and meiosis, kinetochore fibers are thought to attach to the kinetochores of chromosomes, helping to move them towards the poles of the cell during cell division. This process ensures equal distribution of genetic material to daughter cells.
Kinetochore fibers are microtubules that attach to the kinetochore region of a chromosome during cell division, helping to pull the chromosome apart. Polar fibers, on the other hand, are microtubules that interact with each other and help push the poles of the cell apart during cell division, providing structural support.
During cell division, kinetochore-microtubule interactions play a crucial role in moving chromosomes to the cell's midline. Kinetochore proteins located on chromosomes capture microtubules emanating from the centrosomes, facilitate their attachment, and generate force to move the chromosomes through a process called congression. This movement ensures proper alignment and segregation of chromosomes during mitosis.
A disc of protein on the centromere.
Cetromere is generally represented by the letter K. K stands for kinetochore. Kinetochore is another word for centromere.
Live cell imaging studies show a decrease in fluorescence intensity of kinetochore proteins as they move poleward during anaphase, indicating shortening kinetochore microtubules. Additionally, electron microscopy reveals a decrease in distance between kinetochores and spindle poles during anaphase, supporting the shortening of kinetochore microtubules.
the kinetochore
I can only find spindle microtubules for kinetochore. Words and concepts get older as you get older, there just isn't anyway around it.
"Kinetochore" refers to a specific part of the centromere. It is a specialized structure that microtubular spindle fibers attach to during mitosis and meiosis.
Microtubules attach to chromosomes at the kinetochore, a protein structure located at the centromere region of each chromosome. This attachment ensures accurate segregation of chromosomes during mitosis.
Prophase
It is made up of proteins and DNA.
The centromere is a region of a chromosome that plays a role in chromosome segregation during cell division. The kinetochore is a protein structure located at the centromere that helps attach the chromosome to the mitotic spindle during cell division. In summary, the centromere is a DNA region while the kinetochore is a protein structure located within the centromere region.
The kinetochore forms at the centromere region of a chromosome. The centromere is a specialized DNA sequence where the kinetochore proteins assemble to help in the attachment of spindle fibers during cell division.
Kinetochores are located at the level of the centromere of chromosomes.