plasmid puc 18 dna 质粒pucdna
plasmid PMD-18 DNA 质粒PMD
18 s ribosomal dna s核糖体dna
18 s ribosomal dna gene s核糖体rna基因
NIH 3T3 cells were transfected by human papillomavirus 18(HPV 18). HPV 18 DNA as donor and calf thymus DNA as vector. Calcium phosphate technique was used.
以HPV-18 DNA 为供体、小牛胸脉DNA 为载体，NIH 3T3细胞为受体细胞，应用磷酸钙沉淀法将供体DNA 引入细胞内，得到了清晰的NIH 3T3细胞形态学转化灶。
Those chosen, who are aged between 18 and 73, will undergo a day of tests at sea level, to establish their metabolic baselines and have their DNA sampled.
被选定的人(年龄在18到73岁之间)将在海平面高度作一系列的测试，建立他们的代谢状况档案，并进行DNA采样。
Professor Montgomery says in his foreword to the report that the DNA profiles of over three-quarters of young black men between 18 to 35 are recorded on the database.
Montgomery教授在报告前言中说，18岁到35岁年轻黑人男子中有超过四分之三的人在数据库中留有DNA样本。
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