These plasmids occur naturally in nature; they were discovered in micro-organisms and they also confer some biological properties onto micro-organisms.
这些质粒在自然界中自然存在；它们是在微生物中发现的，它们也赋予了微生物一些生物学特性。
Plasmids were extracted by alkali with lysozyme.
碱变性加溶菌酶法对标本进行质粒抽提。
In the 1970s, scientists isolated bacterial plasmids.
20世纪70年代，科学家分离出了细菌的原生质。
The plasmids caused the cells to turn into iPS cells.
这些质粒将细胞转变成诱导性多功能干细胞。
The same should apply to bacterial strains, plasmids, etc.
对于菌种、质粒也是如此。
ABA could improve the expression of some of these chimeric plasmids.
ABA具有诱导嵌合植物表达载体表达的作用。
New phages can develop by acquiring restriction enzymes from plasmids.
通过从质粒获得的限制性酶，新的噬菌体能够生长。
Apply the technique of vector recombine to acquire recombinant plasmids.
运用载体重组技术进行质粒重组；
Drug resistant gene were positioned by plasmids conjugation experiments.
质粒接合实验定位耐药基因；
The positive plasmids were transformed into E. coli JM109 for further replication.
将阳性质粒转入JM 109大肠埃希菌增殖。
These recombinant plasmids were transfected into PK-15 cells and were screened by G418.
重组干扰载体经纯化后转染PK-15细胞，并进行G418抗性筛选。
The level of purified superhelix plasmids were measured by 1% agarose gel electrophoresis.
所得纯化物以1%琼脂糖凝胶电泳鉴定超螺旋质粒的含量。
DNA computing model and algorithm for the minimal covering problems by plasmids were presented.
给出了图的最小顶点覆盖问题的质粒DNA计算模型及其实现算法。
To explore the method of preparation for Hantavirus s segment standard plasmids of real-time PCR.
构建汉坦病毒S片段标准品，用于实时荧光定量pcr检测汉坦病毒。
Objective To study the distribution of plasmids in drug resistance bacteria of nosocomial infections.
目的了解医院内感染耐药性菌质粒的分布情况。
The plasmids in cDNA library and in gene pools were extracted and NIH/3T3 cells were transfected respectively.
将文库菌落印迹至尼龙膜，分区培养提取质粒DNA ，建立基因池，并分别转染NIH/3T3细胞。
Results The plasmids containing the PPT element and different internal promoters and GFP gene were constructed.
结果构建了含PPT元件和含不同内部启动子和GFP的质粒。
Plasmids are exta - chromosomal doublestranded, circular DNA molecules found in prokaryotic and eukaryotic cells.
质粒是在原核和真核细胞中发现的染色体外的双链环状DNA分子。
It blocks the DNA molecules (plasmids) that move from one cell to another, spreading antibiotic resistance genes.
它可以通过阻断DNA分子(质粒)在细胞间的移动来遏制抗生素抗性在细菌中的蔓延。
Constructed antisense plasmids were used to explore function of agrin in the proliferation of lymphocyte activation.
并构建针对集聚蛋白的反义质粒，从而进一步研究下调集聚蛋白的表达对淋巴细胞活化的影响。
The first antisense RNAs' naturally occurring were identified in plasmids and other prokaryotic accessory DNA elements.
反义RNA的存在最先是在质粒和其它原核附属DNA元件中被证实的。
These plasmids were introduced into S. lividans TK24, respectively and five genetic engineering strains were constructed.
相应地将构建的表达质粒导入变铅青链霉菌TK24中获得五株基因工程菌株。
It was approved that the gene transposition and specific virus recombination were performed from the constructed plasmids.
经鉴定证实目的基因发生了特异转座和获得的病毒为特异的重组病毒。
Finally, we could evaluate plasmids cDNA extracted with mono-restriction endonuclease enzyme and the AGAR gel electrophoresis.
最后用限制性内切酶单酶切及琼脂凝胶电泳进行鉴定。
These plasmids or vectors DNA were also prepared on a large scale and purified by precipitation with polyethylene glycol (PEG).
实验还大量制备了这两种质粒或载体dna，并用聚乙二醇沉淀法进行了纯化。
Aim:To investigate the influence of the L-forms variation of Salmonella typhimurium on their plasmids and outer membrane proteins.
了解鼠伤寒沙门菌L型变异对细菌质粒和外膜蛋白的影响。
With the plasmids disabled, which the researchers believe is a result of the DNA itself being destroyed, the resistance cannot spread.
研究人员认为质粒是DNA自身被破坏的产物，一旦质粒的传播被阻断，细菌的抗性也就无法继续蔓延。
With the plasmids disabled, which the researchers believe is a result of the DNA itself being destroyed, the resistance cannot spread.
研究人员认为质粒是DNA自身被破坏的产物，一旦质粒的传播被阻断，细菌的抗性也就无法继续蔓延。
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