One name that jumps out from the list above: Philip Morris Companies Inc, one of the world's largest manufacturers of cigarettes and tobacco products. Philipmorris.com states: The Philip Morris name has long been associated with high quality tobacco products and globally recognized cigarette brands.
A type of gene expression control in bacteria. Transcription of a gene under this type of control is induced only when a repressor protein present in the cell is inactivated.
Eukaryotic gene expression can be regulated at many stages. 1  Chromatin accessibility. The structure of chromatin (DNA and its organizing proteins) can be regulated. More open or ârelaxedâ chromatin makes a gene more available for transcription. 2  Transcription. Transcription is a key regulatory point for many genes.