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diplotene
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]Thesaurus| Noun | 1. | diplotene - the fourth stage of the prophase of meiosiscrossing over, crossover - the interchange of sections between pairing homologous chromosomes during the prophase of meiosisprophase - the first stage of meiosisphase, 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" |
diplotene
diplotene[′dip·lō‚tēn] (cell and molecular biology) The stage of meiotic prophase during which pairs of nonsister chromatids of each bivalent repel each other and are kept from falling apart by the chiasmata. diplotene
diplotene [dip´lo-tēn] the stage of the first meiotic prophase, following the pachytene, in which the two chromosomes in each bivalent begin to repel one another and a split occurs between the chromosomes.dip·lo·tene (dip'lō-tēn), The late stage of prophase in meiosis in which the paired homologous chromosomes begin to repel each other and move apart, but are usually held together by chiasmata. The chiasmata are associated with breakage of two chromatids at corresponding points followed by refusion of the broken ends with exchange of segments between the chromatids; this is considered to be the cytologic basis for the crossing-over of genes. [diplo- + G. tainia, band] dip·lo·tene (dip'lō-tēn) The late stage of prophase in meiosis in which the paired homologous chromosomes begin to repel each other and move apart. [diplo- + G. tainia, band]diplotene a stage of MEIOSIS near the end of Prophase 1, in which the CHROMATIDS become separated (except at the CHIASMATA), and the chromosomal material is contracting. The chiasmata indicate that CROSSING OVER is taking place.diplotene
Related to diplotene: leptotene, pachytene, diakinesis, Meiosis 1, Meiosis 2Words related to diplotenenoun the fourth stage of the prophase of meiosisRelated Words- crossing over
- crossover
- prophase
- phase
- stage
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