pachyneman.
/pakɪˈniːmə/, U.S. /ˌpækᵻˈnimə/ Cell Biology.
= pachytene n.
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
1909 Archiv f. Zellforschung 3 437 The longitudinal pairing of the univalent spireme segments is completed..at about the middle of the synapsis, giving rise to the thick spireme or pachynema.
1911 Q. Jrnl. Microsc. Sci. 57 8 In pachynema the chromatin threads are arranged in the characteristic bouquet grouping.
1971 Chromosoma 35 21 Of ten buds treated at middle or late pachynema, three contained normal chiasmatic chromosomes.
1997 Proc. National Acad. Sci. U.S.A. 94 8683/2 CP [sc. cisplatin]-induced recombination events..can be traced to primary spermatocytes that have progressed about 2 days into pachynema.
This entry has been updated (OED Third Edition, March 2005; most recently modified version published online March 2022).
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