如图为染色体和dna的关系示意图.下列说法错误的是 A.染色体由dna和蛋白质组成b.dna的结构像一个螺旋形的梯子c.dna上只有一个 Template




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tomski如图为染色体和dna的关系示意图.下列说法错误的是 a.染色体由dna和蛋白质组成b.dna的结构像一个螺旋形的梯子c.dna上只有一个 coloring