prometaphase


prometaphase
The stage of mitosis or meiosis in which the nuclear membrane disintegrates and the centrioles reach the poles of the cell, while the chromosomes continue to contract.

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pro·meta·phase -'met-ə-.fāz n a stage sometimes distinguished between the prophase and metaphase of mitosis or meiosis and characterized by disappearance of the nuclear membrane and formation of the spindle

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pro·meta·phase (pro-metґə-fās) the phase of cell division that follows prophase; it begins with the disintegration of the nuclear membrane, after which microtubules from each pole of the spindle bind to the kinetochores of the chromosomes, which begin moving toward the cell equator.

Medical dictionary. 2011.

Look at other dictionaries:

  • Prometaphase — is the phase of mitosis following prophase and preceding metaphase, in eukaryotic somatic cells.The nuclear envelope breaks into fragments and disappears. Microtubules emerging from the centrosomes at the poles (ends) of the spindle reach the… …   Wikipedia

  • Prometaphase — Prométaphase La prométaphase est la phase qui se déroule après la prophase mais avant la métaphase au cours de la mitose dans les cellules somatiques eucaryotes. Les microtubules, qui se sont développés à partir des centrosomes localisés aux deux …   Wikipédia en Français

  • prometaphase — prometaphase. См. метакинез. (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.

  • Prometaphase — 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 …   Deutsch Wikipedia

  • Prométaphase — La prométaphase est la phase qui se déroule après la prophase mais avant la métaphase au cours de la mitose dans les cellules somatiques eucaryotes. Les microtubules, qui se sont développés à partir des centrosomes localisés aux deux pôles de la… …   Wikipédia en Français

  • prometaphase — prometafazė statusas T sritis augalininkystė apibrėžtis Mitozės fazė, kai branduolio apvalkalėlis suyra ir išryškėja chromosomos metafazinėje plokštelėje. atitikmenys: angl. prometaphase rus. прометафаза …   Žemės ūkio augalų selekcijos ir sėklininkystės terminų žodynas

  • prometaphase — n. [Gr. pro, before; meta, between; phasis, appearance] In meiosis and mitosis the stage at which the chromosomes move to the equatorial plate …   Dictionary of invertebrate zoology

  • prometaphase — Rarely used term that designates an extra stage in mitosis, starting with the breakdown of the nuclear envelope. Usually lumped in with metaphase …   Dictionary of molecular biology

  • prometaphase — noun The stage between prophase and metaphase in mitosis …   Wiktionary

  • prometaphase — pro·metaphase …   English syllables


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