Gene regulation may also serve as a substrate for evolutionary change , since control of the timing , location , and amount of gene expression can have a profound effect on the functions -LRB- actions -RRB- of the gene in a cell or in a multicellular organism .

Gene regulation may also serve as a substrate for evolutionary change , since control of the timing , location , and amount of gene expression can have a profound effect on the functions -LRB- actions -RRB- the gene in the organism .
