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单词 postsynapsis
释义

postsynapsis

/ˌpəʊs(t)sɪˈnapsɪs/
Biology
noun
Originally: a stage of meiosis after synapsis; specifically †(a) the stage in late anaphase during which paired chromosomes or chromatids become completely separated (obsolete ); (b) the diplotene stage of meiosis, during which paired DNA strands begin to separate and chiasmata become visible (now rare or disused ). In later use: ( Molecular Biol. ) the final stage of genetic recombination, involving the processes by which the continuity of nucleic acid molecules which have undergone recombination is restored.

Origin

Late 19th century. From post- + synapsis.

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更新时间:2024/9/22 2:06:35