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　　Protein is composed of C (carbon), H (hydrogen), O (oxygen) and N (nitrogen). Generally, protein may also contain P (phosphorus),

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　　The supercoiled structure formed by the further spiral of DNA molecules is called the tertiary structure of DNA.Therefore, this is

　　Most protein is like a jumble of atoms packed together. But a closer look reveals that protein has a complex

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　　Enzymes involved in the process of DNA replication, transcription and translation, reverse transcription and reverse transcriptase, the principle of base

　　Protein is a complex organic polymer compound composed of α -amino acids combined in a certain order to form a

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