Cytokinesis: Difference between revisions

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Plant cytokinesis differs from animal cytokinesis, partly because of the rigidity of plant cell walls. Instead of plant cells forming a cleavage furrow such as develops between animal daughter cells, a dividing structure known as the [[cell plate]] forms in the cytoplasm and grows into a new, doubled [[cell wall]] between plant daughter cells. It divides the cell into two daughter cells.
 
Cytokinesis largely resembles the [[Prokaryote|prokaryotic]] process of [[binary fission]], but because of differences between prokaryotic and eukaryotic cell structures and functions, the mechanisms differ. For instance, a bacterial cell has a [[Circular chromosome]] (a single chromosome in the form of a closed loop), in contrast to the [[Linear chromosome|linear]], usually multiple, chromosomes of eukaryote. Accordingly, bacteria construct no mitotic spindle in cell division. Also, duplication of prokaryotic DNA takes place during the actual separation of chromosomes; in mitosis, duplication takes place during the [[interphase]] before mitosis begins, though the daughter [[chromatid]]s do notdon’t separate completely before the [[anaphase]].
 
==Etymology and pronunciation==
The word "cytokinesis" ({{IPAc-en|ˌ|s|aɪ|t|oʊ|k|aɪ|ˈ|n|iː|s|ᵻ|s|,_|-|t|ə|-|,_|-|k|ə|-}}{{refn|{{Cite dictionary |url=http://www.lexico.com/definition/cytokinesis |archive-url=https://web.archive.org/web/20200322182541/https://www.lexico.com/definition/cytokinesis |url-status=dead |archive-date=2020-03-22 |title=cytokinesis |dictionary=[[Lexico]] UK English Dictionary |publisher=[[Oxford University Press]]}} }}{{refn|{{MerriamWebsterDictionary|access-date=2016-01-21|cytokinesis}}}}) uses [[classical compound|combining forms]] of ''[[wikt:cyto-#Prefix|cyto-]]'' + ''[[wikt:kine-#Prefix|kine-]]'' + ''[[wikt:-sis#Suffix|-sis]]'', [[Neo-Latin]] from [[Classical Latin]] and [[Ancient Greek]], reflecting "[[cell (biology)|cell]]" and ''[[kinesis (biology)|kinesis]]'' ("motion, movement"). It was coined by [[Charles Otis Whitman]] in 1887.<ref>Battaglia, Emilio (2009). Caryoneme alternative to chromosome and a new caryological nomenclature. ''Caryologia'' 62 (4): 1–80. [http://www.caryologia.unifi.it/past_volumes/62_4supplement/62-4_supplement.pdf link].</ref>