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centromere
(redirected from Centromeres)

   Also found in: Dictionary/thesaurus, Encyclopedia, Wikipedia, Hutchinson 0.03 sec.
centromere /cen·tro·mere/ (-mēr) the clear constricted portion of the chromosome at which the chromatids are joined and by which the chromosome is attached to the spindle during cell division.centromer´ic
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Position of the centromere in (A) metacentric; (B) submetacentric; (C) acrocentric; and (D) telocentric chromosomes.

cen·tro·mere (sntr-mîr)
n.
The most condensed and constricted region of a chromosome to which the spindle fiber is attached during mitosis. Also called kinetochore.

Centromere
The centromere is the constricted region of a chromosome. It performs certain functions during cell division.

centromere (cen)
[sen′trəmir]
Etymology: Gk, kentron + meros, part
the constricted region of a chromosome that joins the two chromatids to each other and attaches to spindle fibers in mitosis and meiosis. During cell division the centromeres split longitudinally, half going to each of the new daughter chromosomes. The position of the centromere is constant for a specific chromosome and is identified as acrocentric, metacentric, submetacentric, or telocentric. Also called kinetochore, kinomere, primary constriction. centromeric, adj.

centromere
the clear constricted portion of the chromosome at which the chromatids are joined and by which the chromosome is attached to the spindle during cell division.


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At least 100 well-spread metaphases with 46 [+ or -] 1 centromeres were examined (Bavorova et al.
They've even decoded some of the gene-poor chromosomal regions called centromeres.
In addition, the identification of nucleic acid sequences that function as plant centromeres has allowed Chromatin to generate stably inherited DNA constructs and mini-chromosomes in several plant species.
 
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