若从植物细胞中提取dna�现实验效果不好如看不到丝状沉淀物用二苯胺鉴定时不显示颜色反应等其可能的原因是 �植物细胞中dna含量低 Template




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tomski若从植物细胞中提取dna�现实验效果不好如看不到丝状沉淀物用二苯胺鉴定时不显示颜色反应等其可能的原因是 �植物细胞中dna含量低 coloring