主缢痕

primary constriction的用法和样例:

例句

  1. The centromere is a specific genetic locus and remains relatively uncoiled during prophase, appearing as a primary constriction.着丝粒是一个特化的遗传区域,在细胞分裂的早期始终保持解开的结构,所以也叫做主缢痕。

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