Common experimental methods in biological laboratory 1. Total RNA extraction (Trizol extraction) 2. PCR 3, agarose nucleic acid electrophoresis 4. Glue recovery and purification of DNA 5. Extraction of E. coli plasmid DNA (alkaline lysis method) 6. Competent cells Preparation 7, screening and identification of recombinants 8. Transfected cells
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