Last week I finally addressed promoters and gave a bit of background on the lac operon. Looking back, I feel that I didn't give the topic of operons adequate treatment. They are a very crucial aspect ...

Proceedings of the National Academy of Sciences of the United States of America, Vol. 71, No. 1 (Jan., 1974), pp. 63-67 (5 pages) The effects of guanosine tetraphosphate (ppGpp) and guanosine ...

This is a preview. Log in through your library . Abstract The lac genes were fused to the ara promoter by means of phage φ 80 translocations of the lac and ara genes to att80. Homology for a crossover ...

New research suggests a possible explanation for the organization of operons, jointly controlled clusters of genes that evolved in bacterial chromosomes. Operons, which are found in the chromosomes of ...