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Chromosomes centromeres are attached to the kinetochere fibers?
Wiki User
∙ 9y ago
It happen only during late-metaphase and anaphase of nuclear division. The kinetochore fibers after attaching with centromeres of all the chromosomes help in the separation of daughter chromosomes and facilitate further movement of these chromosomes on the opposite side.
Wiki User
∙ 8y ago
Wiki User
∙ 9y agoDuring cell division, also called mitosis, the chromosomal centromeres are attached to the kinetochore fibers. They are held together in an X form.
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Chromosomes attached to the spindle fibers by undivided structures is called what?
Name of the Undivided Structures"The centromeres enable chromosomes to attach to spindle fibers." Not exactly. The centromeres are areas of DNA where the two sister chromatids touch. The spindle fibers actually bind to the kinetochore, a structure found on the chromosomes.
What type of fibers help separate the chromosomes?
spindle fibers separate chromosomes during mitosis and meiosis
What are the two most important structures involved in moving chromosomes during mitosis?
Centromeres and spindle fibers..Prophase: During cell division small structures called centromeres move to opposite ends of a cell.Prometaphase: These centromere structures produce spindle fibers that attach to the chromosomes' kinetochores (where the sister chromatids are joined together with bundles of proteins). Other spindle fibers attach to each other at the center.Metaphase: Tension is applied to the fibers, this causes the chromosomes to align along the center of the cell.Anaphase: The fibers pull the chromosomes apart and towards the centromeres at each end of the cell.Telophase: chromosomes arrive at ends and spindle fivers disappear.
What happens to chromosomes after mitosis?
Cells are moved forward through the chromosomes and attached into the spindle fibers. The nuclei of the cell dissolves to make room for the spindle fibers.
What structure acts as a scaffolding for chromosomal attatchment and movement?
Spindle acts as a scaffolding for chromosomal attachment and movement. Chromosomes attach to the spindle fibers by undivided structures called centromeres.
Chromosomes centromeres are attached to the kinetochore fibers?
Prophase
Chromosomes attached to the spindle fibers by undivided structures is called what?
Name of the Undivided Structures"The centromeres enable chromosomes to attach to spindle fibers." Not exactly. The centromeres are areas of DNA where the two sister chromatids touch. The spindle fibers actually bind to the kinetochore, a structure found on the chromosomes.
What is an area where the chromosome are attached?
The chromosomes are attached at their centromeres, which in turn attach to spindle fibers when being pulled apart during mitosis.
What structure are spindles attached to that help pull the paired chromosomes apart?
Spindle fibers attach to the centromeres on the sister chromatids.
To which part of the centromere do mitotic spindle fibers attach during prometaphase?
The centromeres of chromosomes attach to the spindle fibers during metaphase. The spindle fibers bring about the separation of sister chromosomes to the opposite poles. When spindle fibers do not attach to the centromeres, the doubling of chromosomes leads to polyploidy in the cell.
What type of fibers help separate the chromosomes?
spindle fibers separate chromosomes during mitosis and meiosis
What are the two most important structures involved in moving chromosomes during mitosis?
Centromeres and spindle fibers..Prophase: During cell division small structures called centromeres move to opposite ends of a cell.Prometaphase: These centromere structures produce spindle fibers that attach to the chromosomes' kinetochores (where the sister chromatids are joined together with bundles of proteins). Other spindle fibers attach to each other at the center.Metaphase: Tension is applied to the fibers, this causes the chromosomes to align along the center of the cell.Anaphase: The fibers pull the chromosomes apart and towards the centromeres at each end of the cell.Telophase: chromosomes arrive at ends and spindle fivers disappear.
What organelles are crucial to separation of chromosomes?
The centrosomes, fit with two centrioles, produce spindle fibers. Some, specifically called kinetochore fibers, will attach to the centromeres of the chromosomes.
Where do spindle fibers attach to chromosomes?
I am at least 70% sure that they attach to the centriole which binds the chromosome together.Centrioles do not have much to do with chromosomes. Centrioles are found just floating in the cytoplasm, while chromosomes are in the nucleus. Chromatins, strands the chromosomes are make up of, are connected by the centromere. Therefore the spindle fibers probably attach to chromosomes in the nucleus, though I, as well, am not entirely sure.
During metaphase the chromosomes become attached to the what fibers by means of their what?
spindle fibers, and centromere
During metaphase the centrometers attach to what structures?
In animal cells, during metaphase stage of the cell cycle, the centrioles attach to spindle fibers. These spindle fibers are also attached to the chromosomes which are now aligned at the metaphase plate.
When do chromosomes line up at the equator of a cell?
Chromosomes line up with their centromeres on the equator during metaphase of any eukaryotic cell division: mitosis, meiosis I, or meiosis II.During metaphase the arms of the chromosomes are spread out, but it will be the centromeres that lead the way towards the poles during anaphase. This is because in metaphase some spindle fibers, which are formed by the cytoskeleton, attach to the centromeres. It is the contraction of these fibers that pulls the chromosomes (daughter-chromosomes in mitosis and meiosis II) towards the poles in anaphase.There is an important checkpoint during metaphase. If the spindle fibers are not correctly attached, division should stop. However, a few mistakes slip through the net, and sometimes both daughter-chromosomes of a pair (in other words, a pair of former sister-chromatids) move to the same pole. This phenomenon is called non-disjunction, and leads to an abnormal number of chromosomes in both daughter-nuclei.
