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endoreduplication

   Also found in: Medical, Wikipedia 0.01 sec.
endoreduplication [¦en·dō·rē‚dü·plə′kā·shən]
(cell and molecular biology)
Appearance in mitotic cells of certain chromosomes or chromosome sets in the form of multiples.
(genetics)
Two to twelve or more rounds of replication and chromosome duplication without mitotic cell division, as in the production of polytene chromosomes.


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An increasing rate of endoreduplication results in cells with greater DNA content and, subsequently, increased gene expression and greater sink capacity for the developing seed.
Cell expansion and endoreduplication show a large genetic variablilty in pericarp and contribute strongly to tomato fruit growth.
35,36) The process of endoreduplication results in multiple cycles of DNA replication associated with a failure of cell division, thus causing markedly enlarged polyploid nuclei with extensive chromosomal gains (Figure 4, B).
 
 
 
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