下图为染色体与dna的关系示意图下列有关叙述中正确的是 A.�主要存在于细胞质中b.�上具有特定的遗传信息的片段叫做基因c.��都是生物体 Template




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tomski下图为染色体与dna的关系示意图下列有关叙述中正确的是 a.�主要存在于细胞质中b.�上具有特定的遗传信息的片段叫做基因c.��都是生物体 coloring