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A chromatid is attached to a spindle fiber by the what?
by the pulling apart movement required to make two new daughter cells. spindle fibers attach to the opposite ends of the poles during metophase which creates the chromosomes to split. this process of splitting is also known as binary fission
What attaches the spindle fiber to the chromatid?
the kinetochore
What stage of mitosis is Kinetochore are motionless in relation to poles of cells?
During metaphase of mitosis, kinetochores are motionless and positioned at the equator of the cell, aligned in a single plane called the metaphase plate. This alignment ensures that each chromatid is attached to a spindle fiber from opposite poles of the cell, preparing for the subsequent separation of sister chromatids during anaphase.
What phase is when each chromosome is connected to a spindle fiber?
The phase where each chromosome is connected to a spindle fiber is called metaphase. During metaphase, the chromosomes align at the metaphase plate at the center of the cell, and each chromosome is attached to spindle fibers emanating from opposite poles of the cell.
What does spindle fiber attach to?
chromosomes
What structure do copied sister chromatids remain attached?
Copied sister chromatids remain attached at the centromere region, which is a specific DNA sequence on the chromosome. The centromere serves as the attachment site for the spindle fibers during cell division, ensuring that each daughter cell receives one copy of the chromatid.
A muscle spindle is composed of several?
intrafusal fiber muscles embedded with the spindle along side the normal muscle fibers (extrafusal fiber muscles)
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.
What separates sister cells during mitosis?
During mitosis, sister chromatids are separated by the spindle fibers attached to the centromeres of each chromatid. This process ensures that each daughter cell receives an identical set of chromosomes as the parent cell divides.
What is kinetechore?
A kinetochore is a protein structure that forms on a chromatid during cell division. It plays a crucial role in cell division by helping to attach the chromatid to the mitotic spindle, ensuring proper segregation of chromosomes into daughter cells.
What is the role of kinetochores and microtubules?
Kinetochore allows the attachment of chromosomes to the spindle fiber, which is made ofmicrotubules.Microtubules allowssister chromatidsto separate duringcell division.
During this stage of mitosis, when do the chromosomes become attached to the spindle fibers?
During metaphase of mitosis, the chromosomes become attached to the spindle fibers.
