That such coupling is not an incidental consequence of the absence of a spatial barrier is underscored by the phenomenon of nonsense polarity in bacteria, first identified in the lac and trp operons of Escherichia coli nearly 40 years ago (;).everal co-transcriptional activities involving RNA as the substrate serve to prevent the occurrence of R-loops, and the coupling of transcription to translation in the bacteria may be seen as a special instance of such a co-transcriptional activity.
An import is a good brought into a jurisdiction, especially across a national border, from an external source. The party bringing in the good is called an importer.[1][2] An import in the receiving country is an export from the sending country.
What's on This Page. Importing and Exporting. Imports are any resource, good, or service that producers in one country sell to buyers in another country. Exports are any resource, intermediate good, or final good or service that a buyer in one country purchases from a seller in another country. Obtain an Import License or Permit.