...25 bp的着丝粒被称为点着丝粒（point centromere）， 与点着丝粒相对应的是大多数真核生物的 区域着丝粒（regional centromere）（Pluta et al．， 1995）。 酿酒酵母的着丝粒包含3个显著不同的着丝粒DNA元件， 其中2个元件具有特异序列结合位点的作用。
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对偶体彼此相连于称为着丝粒的缩小的区域。
The duplicates are attached to each other at a constricted region called the centromere.
T-DNA在大多数染色体臂的末端分布较多而在着丝粒的周缘区域分布较少。
The distal regions of most of the chromosome arms had relatively high levels of T-DNA integration, while the pericentromeric regions had lower levels.
结果分析得到几乎一半的线粒体基因定位在染色体的着丝粒和亚着丝粒区域。
Almost half of mitochondrial genes showing physical clusters were located in the pericentromeric and subtelomeric regions of the chromosome.
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