Firstly, when RNA polymerase is moving on a DNA template, transcription can result in negative supercoiling behind the polymerase, thus facilitating Z-DNA conformation at permissive regions.是什么意思_Firstly, when RNA polymerase is moving on a DNA template, transcription can result in negative supercoiling behind the polymerase, thus facilitating Z-DNA conformation at permissive regions.在线翻译_英语_读音_用法_例句