Mitotic spindle
The mitotic spindle is a structure of the eukaryotic cytoskeleton involved in mitosis and meiosis.
mitotic spindle A network of microtubules formed during prophase. Some microtubules attach to the centromeres of the chromosomes and help draw the chromosomes apart during anaphase. PICTURE ...
mitotic spindle apparatus - microtubule-based structure present during mitosis to which chromosomes attach and are separated toward opposite poles of the dividing cell.
morphogenesis - creation of form or structure during development.
The mitotic spindle that begins to form in early prophase is a bipolar structure composed of microtubules and associated proteins.
cell cycle, mitotic spindle, DNA replication, kinetochore, microtubule
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Micrograph showing condensed chromosomes in blue and the mitotic spindle in green during prometaphase of mitosis ...
And when the chromosomes are condensing to undergo mitosis, the centrioles form the areas that mitotic spindle forms from.
The centrioles begin to migrate to opposite ends of the cell where they will serve as the organizing site for the mitotic spindle microtubules.
During prophase, the centrioles move to opposite ends of the nucleus and a mitotic spindle of threads begins to appear. Those threads then connect to the now apparent chromosomes.
The mitotic spindle forms. This is an array of spindle fibers, each containing ~20 microtubules. Microtubules are synthesized from tubulin monomers in the cytoplasm and grow out from each centrosome.
Centromere The attachment site of mitotic spindles in chromosomes.
Ceramide (N-acyl sphingosine) A sphingosine with a long-chain acyl group attached to the amino group.
centriole Paired cellular organelle which functions in the organization of the mitotic spindle during cell division in eukaryotes. PICTURE ...
Eucaryote
An organism with a nuclear membrane and membrane bound organelles (e.g. mitochondria), and a mitotic spindle. This group of organisms is more correctly called Eucarya.
Aster microtubules originating around centrioles in dividing animal cells‚ from which the mitotic spindle eventually forms
(aster = star) ...
(kih-net-oh-kor) [Gk. kinetikos, putting in motion + choros, chorus]
A specialized region on the centromere that links each sister chromatid to the mitotic spindle.
kingdom
A taxonomic category, the second broadest after domain.
anaphase The stage in mitosis and meiosis, following metaphase, in which the centromeres divide and the chromatids, lined up on the mitotic spindle, begin to move apart toward the poles of the spindle to form the daughter chromosomes.
to condense and becomes visible in the light microscope as chromosomes. The nucleolus disappears. Centrioles begin moving to opposite ends of the cell and fibers extend from the centromeres. Some fibers cross the cell to form the mitotic spindle.
is generally flanked by repetitive DNA sequences and it is late to replicate. The centromere is an A-T region of about 130 bp. It binds several proteins with high affinity to form the kinetochore which is the anchor for the mitotic spindle.
 See also: Spindle, Mitosis, Cells, Microtubule, Cell
  
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