超螺旋化对于质粒dna在转录水平上的表达是必需的。
Supercoiling is necessary for the expression of recombinant plasmid DNA at transcription level.
所得纯化物以1%琼脂糖凝胶电泳鉴定超螺旋质粒的含量。
The level of purified superhelix plasmids were measured by 1% agarose gel electrophoresis.
一种超螺旋光束被用来区分左右手性分子，准确度达到了空前水平。
A super twisty beam of light has been created that can distinguish between left and right-handed molecules with unprecedented precision.
一种超螺旋光束被用来区分左右手性分子，准确度达到了空前水平。
A super twisty beam of light has been created that can distinguish between left and right-handed molecules with unprecedented precision.
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