Prophase may be divided into successive stages termed leptotene, zygotene, pachytene, diplotene, and diakinesis.

细、、、双和终变。

In addition,the homeologous multivalent s have been observed in spreads of zygotene but these multivalents were ultimate ly resolved.

在 还观察到由同祖配的多价体，但在随后阶段中这些多价体消失。