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.
Key points: 1  Gene regulation is the process of controlling which genes in a cell's DNA are expressed (used to make a functional product such as a protein). 2  Different cells in a multicellular organism may express very different sets of genes, even though they contain the same DNA.