Using the plasmid pBR322 as a vector,EcoRI-BamHI and BamHI restrictionfragments of the ribosomal RNA gene (rDNA)from the silk worm Attacus ricini(Philosamia cynthia ricini) have been cloned in E.是什么意思_Using the plasmid pBR322 as a vector,EcoRI-BamHI and BamHI restrictionfragments of the ribosomal RNA gene (rDNA)from the silk worm Attacus ricini(Philosamia cynthia ricini) have been cloned in E.在线翻译_英语_读音_用法_例句