prometaphasen.
/prəʊˈmɛtəfeɪz/, U.S. /proʊˈmɛdəˌfeɪz/ Genetics and Cell Biology.
The stage in mitotic or meiotic nuclear division, following prophase and preceding metaphase, during which the condensed chromosomes become sequentially attached at their kinetochores to the spindle microtubules.
ΘΚΠ
the world > life > biology > biological processes > genetic activity > [noun] > stages of mitosis or meiosis
resting stage1810
prophase1884
anaphase1887
metaphase1887
synapsis1895
telophase1895
maturation division1896
postsynapsis1898
strepsinema1900
synizesis1905
interkinesis1906
pachynema1909
telosynapsis1909
leptonema1911
metasyndesis1911
strepsitene1911
zygonema1911
zygotene1911
leptotene1912
pachytene1912
interphase1913
telosyndesis1920
prometaphase1931
dictyotene1957
dictyate1958
1931 W. J. C. Lawrence in Cytologia 2 361 The degree of repulsion gradually diminishes and diakinesis is abruptly terminated by the sudden converging of the chromosomes on the centre of the nucleus. This stage (pro-metaphase) is very brief and is characterised by the secondary association of a number of the bivalents.
1953 Amer. Jrnl. Bot. 40 595/2 Further shortening of the chromosomes brings the cell to pro-metaphase.
1989 B. Alberts et al. Molecular Biol. Cell (ed. 2) xiii. 763 At prometaphase, the nuclear envelope breaks down, allowing the microtubules from each centrosome to enter the nucleus and interact with the chromosomes.
2003 Curr. Opin. in Cell Biol. 15 667/1 A first step in nuclear disassembly is the breakdown of the nuclear envelope... This defines the onset of prometaphase.
This entry has been updated (OED Third Edition, June 2007; most recently modified version published online March 2022).
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n.1931