TRENDING NOW. 1  volunteer 'Someone who does something without being forced to do it'. 2  operationalize Bannon was removed from the National Security Council. 3  filibuster 'An effort to prevent action in a legislature'. 4  witch hunt Lookups spiked after the president used the phrase in a tweet.
Gene regulation can occur at any point during gene expression, but most commonly occurs at the level of transcription (when the information in a geneâs DNA is transferred to mRNA). Signals from the environment or from other cells activate proteins called transcription factors.ene regulation can occur at any point during gene expression, but most commonly occurs at the level of transcription (when the information in a geneâs DNA is transferred to mRNA). Signals from the environment or from other cells activate proteins called transcription factors.
Thus, one level of regulating gene expression comes as a consequence of the strength of the promoter at the beginning of the gene. The I gene is called a regulator gene; it is transcribed to make a mRNA which is translated to a repressor protein. There is a termination signal at the end of the I gene.