随体(satellite)
关键词: 随体 satellite来源: 互联网
随体是位于染色体末端的、圆形或圆柱形的染色体片段, 通过次缢痕与染色体主要部分相连。它是识别染色体的主要特征之一。根据随体在染色体上的位置,可分为两大类: 随体处于末端的, 称为端随体; 处于两个次缢痕之间的称为中间随体。
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