终变期(又叫浓缩期),染色体变成紧密凝集状态并向核的周围靠近。以后,核膜、核仁消失,最后形成纺锤体。
n. diakinesis
核仁消失,但有的植物在终变期的早期核仁仍然很大。
Nucleolus disappeared, but some plants in the early diakinesis nucleolus remains high.
终变期末有些二价体的同源染色体只在末端连在一起。
Diakinesis bivalents end of some of the homologous chromosomes together only at the end.
前期可被分为连续的阶段:细线期、偶线期、粗线期、双线期和终变期。
Prophase may be divided into successive stages termed leptotene, zygotene, pachytene, diplotene, and diakinesis.
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