metaphase


metaphase
The stage of mitosis or meiosis in which the chromosomes become aligned on the equatorial plate of the cell separating the centromeres. In mitosis and in the second meiotic division, the centromeres of each chromosome divide and the two daughter centromeres are directed toward opposite poles of the cell; in the first division of meiosis, the centromeres do not divide but the centromeres of each pair of homologous chromosomes become directed toward opposite poles. [meta- + G. phasis, an appearance]

* * *

meta·phase 'met-ə-.fāz n the stage of mitosis and meiosis in which the chromosomes become arranged in the equatorial plane of the spindle

* * *

n.
the second stage of mitosis and of each division of meiosis, in which the chromosomes line up at the centre of the spindle, with their centromeres attached to the spindle fibres.

* * *

meta·phase (metґə-fāz″) [meta- + phase] the stage of cell division following prometaphase, during which the asters move further apart and the chromosomes move along the spindle microtubules to the center of the cell and line up to form the equatorial or metaphase plate. In meiosis I, the kinetochores of homologous chromosome pairs become directed at opposite poles.

Medical dictionary. 2011.

Look at other dictionaries:

  • Metaphase — Métaphase La métaphase est la troisième phase de la mitose (ou deuxième phase de la mitose si on considère la prométaphase et la métaphase comme une seule étape), après la prophase et la prométaphase. C est le rassemblement des chromosomes… …   Wikipédia en Français

  • métaphase — [ metafaz ] n. f. • 1887; de méta et phase ♦ Biol. Deuxième phase de la mitose. ● métaphase nom féminin Deuxième phase de la mitose, caractérisée par la disposition des chromosomes, qui forment la plaque équatoriale. métaphase n. f. BIOL Deuxième …   Encyclopédie Universelle

  • metaphase — metaphase. См. метафаза. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • Metaphase — Metaphase, 2. Phase der ⇒ Mitose und der ⇒ Meiose …   Deutsch wörterbuch der biologie

  • metaphase — [met′ə fāz΄] n. [ META + PHASE1] Biol. the stage in mitosis and meiosis, after the prophase and before the anaphase, during which the chromosomes are arranged along the equatorial plane of the spindle …   English World dictionary

  • Metaphase — In metaphase, the chromosomes align in the middle of the cell. Immunofluorescent im …   Wikipedia

  • Metaphase — Schematische Darstellung der Mitose I: Interphase; II: Prophase; III: Prometaphase; IV: Metaphase; V und VI: Anaphase; VII: Telophase; VIII: Zytokinese Als Mitose (zu griechisch μίτος = Faden) (auch Karyokinese) bezeichnet man den Vorgang der Z …   Deutsch Wikipedia

  • Métaphase — La métaphase est la troisième phase de la mitose (ou deuxième phase de la mitose si on considère la prométaphase et la métaphase comme une seule étape), après la prophase et la prométaphase. C est le rassemblement des chromosomes condensés à l… …   Wikipédia en Français

  • metaphase — Classically the second phase of mitosis or one of the divisions of meiosis. In this phase the chromosomes are well condensed and aligned along the metaphase plate, making it an ideal time to examine the chromosomes in a cytological preparation… …   Dictionary of molecular biology

  • Metaphase — Me|ta|pha|se 〈f. 19; Biol.〉 bestimmtes Stadium der Kernteilung einer Zelle [<grch. meta „mitten, zwischen, nach, hinter“ + Phase] * * * Metaphase,   Phase der Zellteilung. * * * Me|ta|pha|se, die; , n [aus ↑meta , ↑Me …   Universal-Lexikon


Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.