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centromere
(redirected from Centromeres)

   Also found in: Dictionary/thesaurus, Medical, Wikipedia, Hutchinson 0.01 sec.

centromere

Structure in a chromosome that holds together the two chromatids. It is the point of attachment to the structure that pulls the chromatids to opposite ends of the cell during cell division (see mitosis). During the middle stage of mitosis, the centromere duplicates and the chromatid pair separates, each chromatid becoming a separate chromosome. Thus, when the cell divides, both daughter cells have complete sets of chromosomes.


centromere [′sen·trə‚mir]
(cell and molecular biology)
A specialized chromomere to which the spindle fibers are attached during mitosis. Also known as kinetochore; kinomere; primary constriction.


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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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