Category: Sports situation

　　The amino acid sequence analysis of protein polypeptide chain, that is, the determination of protein primary structure, mainly includes the

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　　Skiing is a winter sport, so you need to pay attention to keep warm and protect yourself when skiing. In

　　The supercoiled structure formed by the further spiral of DNA molecules is called the tertiary structure of DNA.from Chemical Custom

　　Protein is a substance with a certain spatial structure, which is formed by the zigzag folding of polypeptide chains composed

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