基因工程育种 1.目的基因的分离 2.载体选择 3.目的基因与载体DNA的体外重组 4.转化 5.筛选
基因工程育种 1. 目的基因的分离 2. 载体选择 3. 目的基因与载体DNA的体外重组 4. 转化 5. 筛选
Foreign DNA gene for region of interest antibiotic Plasmid EcoRI resistance EcoRI EcoRI EcoRI EcoRI Sticky ends" Hybridization +DNA ligase Recombinant DNA DNA insertion 。 Bacteria Bacterial Bacteria platted on medium cell chromosome antibiotic Cloning ©o Only bacteria containing recombinant DNA grow ①固⊙o Culture I Clone DNA purification 8 Cloning into a plasmid