Centromere is the primary constriction on the chromosome, a region at which the sister chromatids are held together.
着丝点是染色体的主缢痕，在这个地方姐妹染色单体连在一起。
Centromere --- The primary constriction on the chromosome, a region at which the sister chromatids are held together and at which the kinetochore is formed.
染色体的主缢痕，使姐妹染色单体连在一起，在其两侧各有一个由蛋白构成的动粒。
The secondary constriction has been observed on the centromere region of the chromosome No.
染色体短臂近着丝粒区观察到次缢痕。
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