In metaphase 2, the centromeres contain two kinetochores that attach to spindle fibers from the centrosomes at opposite poles.

中期 2，着丝粒与纺锤丝连结。

The spindle fibers shorten and the centromere divides, so each chromosome becomes two separate chromatids.

纺锤丝缩短了，着丝粒分裂，所每个染变成两个独立的染。

The microtubules invade the nuclear region after the nuclear envelope disintegrates, attaching to the chromosomes at the kinetochore.

核膜解后，微管侵核区，附着在着丝粒的染上。

The DNA is exactly replicated, and each chromosome now becomes two identical chromatids joined by the centromere.

DNA 被精确地复制了，每条染现在变成了两条由着丝粒连接的相同染。

This is followed by anaphase 2, in which the remaining centromeric cohesion is cleaved, allowing the sister chromatids to segregate.

紧随其后的是后期 2，在这一阶段，着丝粒纵裂，姐妹染分离。