pachynema,fat line; thick line是什么意思

用法例句

Chromomeres in varying degrees of clearness were observed on early, middle and late pachytene bivalents in red crucian carp, Carassius auratus.

在红鲫减数分裂不同时相粗线期二价体上都可看到清晰度各不相同的染色粒带。