kinetochores Structures at the centromeres of the chromosomes to which the ?bers of the mitotic spindle connect. PICTURE ...
kinetochore
(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 ...
Kinetochores and Kinetochore Microtubules
During prophase, protein plates called kinetochores form on the centromeres of each chromosome.
kinetochore - structure that attaches a eukaryotic chromosome to the spindle apparatus for separation during mitosis; adjacent to the centromere.
Kinetochore The part of the centromere to which the spindle fibres are attached.
Kinetochore
Structure forming at centromere during mitosis for binding microtubules.
Related Terms:
Centromere ...
kinetochore A disc of proteins located on the centromere, specialized to interact with the spindle fibers during mitosis.
Kinetochore microtubules shorten, severing the recombination nodules and pulling homologous chromosomes apart. Since each chromosome only has one kinetochore, whole chromosomes are pulled toward opposing poles, forming two haploid sets.
As the kinetochore microtubules attach to their receptors on the chromatid kinetochores, the chromosomes are brought into agitated motion and move rapidly back and forth as tension is exerted by the spindle.
sister kinetochores of one homologue, pulling both sister chromatids toward one pole of the cell;
sister kinetochores of the other homologue pulling those sisters toward the opposite pole.
Anaphase A involves shortening kinetochore mictrotubules by depolymerisation at both ends. During this, motor proteins at the kinetochores pull on the kinetochore microtubules.
The kinetochore is the point where microtubules of the spindle apparatus attach. Replicated chromosomes consist of two molecules of DNA (along with their associated histone proteins) known as chromatids.
Centrioles at opposite poles
Chromosomes line up on the equator of the spindle
Centromeres (kinetochores) attach to spindle fibres
Kinetochores consist of microtubules and "motor" proteins which utilise ATP to pull on the spindle ...
Verma (Long Island College Hospital and State University of New York Health Science Center), covers a wide spectrum of topics, including a comprehensive introduction; an anatomy of the genome; the molecular biology of heterochromatin, kinetochores, ...
Metaphase I: SPINDLE FIBERS attach to each dyad at the KINETOCHORE. Tension from spindle fibers aligns the tetrads at the cell equator.
Anaphase I: Chiasmata break apart and sister chromatids begin migrating toward opposite poles.
Metaphase is defined as the phase of mitosis when the centromeres and kinetochores are pulled and pushed into the center of the cell.
- A single differentiated region of the chromosome which acts as the point of association between the chromosome and the spindle; also called kinetochore or primary constriction
Chloropidae ...
the structure located at a specific site on the chromosome that holds the two chromatids together; it is the site of attachment for the spindle fibers during cell division; also called primary constriction or kinetochore ...
The centromere 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 ...
stage, the condensed chromosomes have aligned along the metaphase (or equatorial) plate, an imaginary plane located between the poles of a dividing cell, while the microtubules formed during prophase would then attach themselves to kinetochores.
double when nuclear division begins, he used the term in the now universally adopted sense of the stage in mitosis or meiosis I or II during which the chromosomes are aligned along the equatorial (metaphase) plate (ep) of the cell and kinetochores ...
 See also: Spindle, Chromosome, Mitosis, Cell, Chromosomes
  
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