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nucleolar organizing region, NOR (核仁组织区)

名词解释题

2022-01-04 01:37

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是细胞核特定染色体的次缢痕处，含有rRNA基因的一段染色体区域，与核仁的形成有关，故称为核仁组织区。核仁是NOR中的基因活动而形成的可见的球体结构。

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标签：细胞核与染色体大学试题

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