pachytene

詳細解釋：

pach.y.tene

n.（名詞）
The third stage of the prophase of meiosis during which the homologous chromosomes become short and thick and divide into four distinct chromatids.
粗線期：在同周期的染色體群變短變粗並分裂為四個不同的染色單體過程中減數分裂前期的第三個階段

來源：
French pachytène
法文 pachytène
Greek pakhus [thick]
希臘語 pakhus [厚的]
-tène [ribbon] from Latin taenia * see taenia
-tène [帶狀物] 源自 拉丁語 taenia *參見 taenia