zygotene


Also found in: Thesaurus, Medical, Encyclopedia, Wikipedia.
Related to zygotene: diplotene, meiosis, synaptonemal complex

zy·go·tene

 (zī′gə-tēn′)
n.
The stage in prophase of meiosis during which homologous chromosomes become paired.

[French zygotène : zygo-, pair (from New Latin; see zygo-) + -tène, ribbon (from Latin taenia; see taenia).]

zygotene

(ˈzaɪɡəˌtiːn; ˈzɪɡ-)
n
(Biology) the second stage of the prophase of meiosis, during which homologous chromosomes become associated in pairs (bivalents)

zy•go•tene

(ˈzaɪ gəˌtin, ˈzɪg ə-)

n.
the second stage of prophase in meiosis, during which corresponding chromosomes become paired.
[1925–30; < French zygotène; see zygo-, -tene]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.zygotene - the second stage of the prophase of meiosis
prophase - the first stage of meiosis
phase, stage - any distinct time period in a sequence of events; "we are in a transitional stage in which many former ideas must be revised or rejected"
Mentioned in ?
References in periodicals archive ?
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.
The early prophase stage comprises the leptotene, zygotene and pachytene steps of the meiotic prophase I, which are recognized by their distinct chromatin pattern (Fig.
This latter cell gives rise to the primary spermatocyte, which quickly undergoes its first meiotic division and passes through 4 prophase stages, leptotene, zygotene, pachytene, and diplotene, before undergoing meiotic metaphase.
The labelling at fully synapsed chromosomes quickly decreased in late zygotene nuclei, disappearing completely by mid to late pachytene.
The respective frequencies of the leptotene, zygotene and pachytene stages as well as the frequencies of the four substages of pachytene were evaluated.