The attenuation control of the tryptophan biosynthetic pathway genes in Escherichia coli involves coupled transcription and translation. Can you describe why this mechanism of regulation would not be appropriate for regulating the genes involved in the utilization of lactose?
Answer to relevant QuestionsMost of the regulatory systems described in this chapter employ regulatory proteins. However, regulatory RNA is also important. Describe how one could achieve negative control of the lac operon using either of two different ...Describe the types of genomes found in bacterial viruses. Give an example of one virus for each type of genome. How is a viral suspension quantified and what is meant by the word “titer”? Rabies virus and poliovirus both have single-stranded RNA genomes, but only in poliovirus can the genome be translated directly. Explain. Describe how the genome of bacteriophage ϕX174 is transcribed and translated.
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