In __________ organisms,the primary function of a gene in a cell is to participate in regulating the body as a whole and not to responding to the cell's immediate environment.
Vertebrate cells apparently possess a protein that by binding to clusters of 5-methylcytosine ensures that the bound gene will stay in the "off" position.This control on the role of gene regulation is a result of
Regulatory proteins shut off transcription by binding to a site immediately in front of the promoter and often even overlapping the promotor.This site is referred to as the