这个词是什么意思？
The three-part structure of ribbon-like proteinaceous material that serves to align and join the paired homologous CHROMOSOMES. It is formed during the ZYGOTENE STAGE of the first meiotic division. It is a prerequisite for CROSSING OVER.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D013573 · MeSH 2026。
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