The method for preparing biotin of the plasmid of DNA fragmentation and plasmid microorganism and biotechnology containing the DNA fragmentation

摘要

DNA fragmentation, including the plasmid of gene, at night, his biosynthesy biob, biof, biod and biology or its function are equivalent to the hereditary variation an of mutant and the sequence in the gene of enterobacteria in a transcript unit. The invention further relates to microorganism, manufacturing method that these DNA fragmentations and plasmid contain and use these mikroorganismAt night, he