| 释义 |
〔pachytene〕The third stage of the prophase of meiosis during which the homologous chromosomes become short and thick and divide into four distinct chromatids.粗线期：在同周期的染色体群变短变粗并分裂为四个不同的染色单体过程中减数分裂前期的第三个阶段〔coarsen〕To make or become coarse.变粗，使粗：使或变成粗劣 |