diplotene


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diplotene

(ˈdɪpləʊˌtiːn)
n
(Biology) the fourth stage of the prophase of meiosis, during which the paired homologous chromosomes separate except at the places where genetic exchange has occurred. See also chiasma1, crossing over
[C20: from diplo- + Greek tainia band]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.diplotene - the fourth stage of the prophase of meiosis
crossing over, crossover - the interchange of sections between pairing homologous chromosomes during 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"
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.
En diplotene, diacinesis y metafase I se encontraron 9II en todas las celulas analizadas (Figs.
The meiotic division of oocytes begins prenatally in the follicles and stops at the diplotene stage of prophase I just before or immediately after birth.
El nucleo ovocitario presenta un prominente nucleolo y los cromosomas en configuracion diplotene o lampbrush.
In females, in which the primary oocytes are arrested in the diplotene stage of meiotic prophase I, this process is initiated only after birth, during the follicular growth phase.
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.
In Church's (1974) words in a study of chiasma frequency in female Melanoplus femurrubrum: 'Obtaining 30 analysable cells in diplotene is a monumental task for the following reasons.