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  • noun

Words related to pachytene

the third stage of the prophase of meiosis

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References in periodicals archive ?
The other germinal cells in this stage were primary spermatocytes in the zygotene and pachytene stage, which were clearly observed in the seminiferous epithelium.
The chromosomes in the pachytene stage of the prophase appear in the nucleus of the primary spermatocyte near the Sertoli cells (Fig.
Bailis, "The pachytene checkpoint," Trends in Genetics, vol.
TNF-[alpha] is expressed as a transmembrane protein in pachytene spermatocytes, round spermatids, and testicular macrophages [51].
Primary spermatocytes, stained with the anti-SCP3 antibody, were selected to evaluate the respective percentages of leptotene, zygotene, pachytene and diplotene stages.
The preleptotene spermatocytes enter prophase I of meiosis, transform into leptotene, zygotene, pachytene and diplotene cells, which then quickly finish meiosis I forming secondary spermatocytes.
In these spermatocytes, the chromatin in the nucleus of the pachytene oocytes, even more condensed, takes the shape of an umbrella (Fig.
In the case of non-irradiated larvae, relative sizes of chromosome pairs in pachytene cells were measured using the computer application MicroMeasure version 3.3 (available at (Reeves & Tear 2000).
Synaptic behaviour and morphological modifications of the X and Y chromosomes during pachytene in three species of Ctenomys (Rodentia, Caviomorpha, Ctenomyidae).
[29.] Syed V., Hecht N.B.: Rat pachytene spermatocytes downregulate a polo-like kinase, and up-regulate a thiolspecific antioxidant protein, whereas sertoli cells downregulate a phosphodiesterase and up-regulate an oxidative stress protein after exposure to methoxyethanol and methoxyacetic acid.
van der Molen, "Regulation of survival of rat pachytene spermatocytes by lactate supply from Sertoli cells," Journal of Reproduction and Fertility, vol.
Different levels of a lack of X-Y chromosome pairing in pachytene spermatocytes of red fox (Vulpesvulpes) and Chinese raccoon dog (Nyctereutesprocyonoidesprocyonoides).Annals Animal Science 1: 71-81.
Disruptions in the expression pattern of GLD-1 can lead to pachytene (meiotic prophase) progression defects that can result in germ line tumors, meiotic entry defects, and aberrant germ line sex determination [19, 20].
A difference at the ultrastructural level appears as formation of meiosis-specific synaptonemal complexes (SCs), the ultrastructures that join homologous chromosomes into bivalents during pachytene stage of meiotic prophase I in the vast majority of eukaryotes.