Recurring Design Logic in Operon Regulation
Arginine, bacteria, bacterial cell, bacterial systems, biology, biosynthesis, conformational change, DNA, enzymes, Evolution, evolutionary origins, genes, Intelligent Design, lactose, operons, recurring design logic, regulatory systems, repressor, RNA polymerase, sequence homology, stop codons, structural motif, superfamily, transcriptional hierarchies, tryptophan
As we see in these two examples, the design logic is the same. And yet, these two systems are not evolutionarily related to one another. Source