noun Cell Biology.
a late stage of prophase during meiosis, in which the chromatid pairs of the tetrads begin to separate and chiasmata can be seen.

< French diplotène (1900); see diplo-, -tene

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diplotene (ˈdɪpləʊˌtiːn)
chiasma See also crossing over the fourth stage of the prophase of meiosis, during which the paired homologous chromosomes separate except at the places where genetic exchange has occurred
[C20: from diplo- + Greek tainia band]

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diplotene dip·lo·tene (dĭp'lə-tēn')
A stage of meiotic prophase in which homologous chromosome pairs begin to separate and chiasmata become visible.

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