The chiasmata can slip off the ends of the bivalents, and thus chiasma frequency may be reduced by terminalization.
有交叉以从二价体末端处滑开,因此移端过程以降低交叉频率。
Terminalization The movement of chiasmata to the end of the bivalent arms, a process that may occur during late prophase I of meiosis.
交叉)移端:发生在第一次减数期,染色体交叉向二价体染色体臂的末端移动的过程。
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At the sites where exchange happens, chiasmata formed.
在换的地方,形成了叉。
The chiasmata remain on the chromosomes until they are at the transition to anaphase 1.
叉留在染色体上,直到它们过渡到后期 1。
At this stage, non-sister chromatids may cross-over at points called chiasmata (plural) , (singular: chiasma) .
在这个阶段,非姐妹染色单体可能会叉。
However, the homologous chromosomes of each bivalent remain tightly bound at chiasmata, the regions where crossing-over occurred.
然而,每个二价体的同源染色体仍然紧密结合在叉部位,也就是叉的区域。
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