How would you make transcription and translation work when you no longer have a nucleus? Bacteria have an interesting answer. Attenuation, or dampening, of the trp operon is made possible by the ...

As humans, we often focus on viruses and bacteria because of their role in causing various, sometimes severe, diseases.

A bacterial gene is the minimal contiguous stretch of DNA in a bacterium that contains the expressed and regulatory sequences sufficient to complement the function of a null mutation in trans.