Dna Replication Ppt
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Dna Replication Ppt
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DNA gene DNA RNA RNA 1 DNA 去除与dna结合的蛋白质。 dna沉淀:使用高浓度的盐或者乙醇使dna从溶液中沉淀。 洗涤去除杂质:去除盐类,去污剂和有机溶剂等。 溶解:沉淀的dna用水或者te溶液溶解。 实验步骤: 不同类型的提取方法:离心柱法、磁珠法,按照使用说明提取即可。
Dna Replication Pptdna中的核苷酸中碱基的排列顺序构成了遗传信息。 该遗传信息可以通过转录过程形成RNA,然后其中的mRNA通过翻译产生多肽,形成蛋白质。 在细胞分裂之前,DNA复制过程复制了遗传信息,这避免了在不同细胞世代之间的转变中遗传信息的丢失。 2 dna dna a c g t 3 dna