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Microtubules that extend from the poles of a cell to the centromers during cell division are called?
spindle fibers
What are Microtubles that extend from the poles of cell to the centromeres during cell division called?
spindle fibers
Cables made of microtubules that extend from the poles of a cell to the centromeres during cell division are called?
The cables made of microtubules that extend from the poles of a cell to the centromeres during cell division are called spindle fibers or mitotic spindles. They help in the separation of chromosomes during mitosis or meiosis by attaching to the centromeres.
Distinguish between kinetochore fibers and polar fibers?
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.
In which steps of mistosis do the fibers appear?
The fibers, known as spindle fibers, appear during prophase of mitosis. They begin to form as the centrosomes move to opposite poles of the cell, and the microtubules extend from the centrosomes. These fibers attach to the chromosomes at their kinetochores during prometaphase, facilitating their alignment and separation in subsequent stages.
What cell parts migrate to the poles during pro phase?
During prophase of mitosis, several key cell parts migrate to the poles. The centrosomes, which organize the mitotic spindle, move to opposite poles of the cell. Additionally, spindle fibers, made of microtubules, extend from the centrosomes and begin to attach to the chromosomes. This organization is crucial for the proper separation of chromosomes in later stages of cell division.
During metaphase the centrometers attach to what structures?
During metaphase, the centromeres of chromosomes attach to spindle fibers (microtubules) that extend from opposite poles of the cell. This attachment helps properly align the chromosomes along the metaphase plate in the center of the cell before they are separated in anaphase.
What is the movement of chromosomes to the center of the cell and later to their respective pole depend upon lengthening and shortening what?
The movement of chromosomes to the center of the cell and later to their respective poles during cell division depends on the lengthening and shortening of spindle fibers, which are composed of microtubules. These fibers attach to the chromosomes at their kinetochores and facilitate their alignment at the metaphase plate and subsequent separation as they pull the chromosomes toward the poles. The dynamic instability of the microtubules, involving cycles of polymerization and depolymerization, drives this movement.
What forms and attach to centrosomes which are found at opposite poles of the cell?
spindle fibers
What foms and attatches to centrosomeswhich are found at opposite poles of the cell?
spindle fibers
What forms and attach to centrosomes which are found opposite poles of the cell?
spindle fibers
What is the purpose of spindle fibers during mitosis?
Spindle fibers are responsible for separating sister chromatids during mitosis by attaching to the centromere of each chromatid and pulling them toward opposite poles of the cell. This ensures that each daughter cell receives an identical set of chromosomes.
