e The basic features of gene regulation are the same in all eukaryotes, because of the similarity in their transcription and nucleosome structure e yeast is the most amenable to both genetic and biochemical dissection, and produces much of knowledge of the action of the eukaryotic repressor and activator . The typical eukaryotic activators works in a manner similar to the simplest bacterial Case e Repressors work in a variety of waysThe basic features of gene regulation are the same in all eukaryotes, because of the similarity in their transcription and nucleosome structure. Yeast is the most amenable to both genetic and biochemical dissection, and produces much of knowledge of the action of the eukaryotic repressor and activator. The typical eukaryotic activators works in a manner similar to the simplest bacterial case. Repressors work in a variety of ways