Definition of Gene Regulation

Gene regulation is a phenomenon in which the expression of genes can be regulated and changed under different conditions. Through gene regulation, the genes can be turned on and turned off depending upon the situation. In this way, the gene regulation checks if the appropriate genes are expressed at the required time or not. It also helps individuals in responding to the environmental factors accordingly.

The gene is regulated by several mechanisms such as modifying the genes by the use of chemicals or by the used of regulatory proteins that help in turning on and off the genes. Some genes are expressed in almost every cell such as housekeeping genes whereas there are some genes which are tissue-specific and are expressed only in a certain type of cells.