Which cellular process is the major point for regulation of

Which cellular process is the major point for regulation of gene expression ?

Solution

Regulation of gene expression is the mechanism in which the production of gene product (protein) is decrease or increase according to the requirement of a cell. Any gene express or suppress in the presence or absence of external stimulus (e.g., lac operon). In response of stimuli the corresponding gene or DNA get unwind to form open complex for RNA pol, this process is called initiation of transcription. Initiation of transcription in the presence of external stimulus is the major point of the regulation of gene expression.