pachynema, n. Cytol.
(pækɪˈniːmə)
[a. F. pachynema (V. Grégoire 1907, in La Cellule XXIV. 3707: see pachy-, *-nema.]
= pachytene n.
| 1909 Archiv für Zellforschung III. 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. LVII. 8 In pachynema the chromatin threads are arranged in the characteristic bouquet grouping. 1971 Chromosoma XXXV. 21 Of ten buds treated at middle or late pachynema, three contained normal chiasmatic chromosomes. 1984 L. W. Browder Developmental Biol. (ed. 2) vii. 295 During late pachynema and in diplonema, miniature nucleoli form in association with these rings of extrachromosomal DNA. |