The duplicates are attached to each other at a constricted region called the centromere. 对偶体彼此相连于称为着丝粒的缩小的区域。
The centromere contains the kinetochore, a structure involved in the attachment of the chromosomes to the spindle during nuclear division. 着丝点上包含了着丝粒，着丝粒确保细胞在分裂中染色体与纺锤体的整合，发生有序的染色体分离。
During mitosis, sister chromatids remain joined by their centromere until anaphase. 在有丝分裂期间，姐妹染色单体在分裂后期之前都是通过着丝点连接的。
The distal end of the kinetochore tubule is firmly embedded in the pole. 着丝点微管的末端牢牢地埋入纺锤极。
