In circumstances where the body requires prolonged or increased levels of a hormone, the dna of target cells will specify the synthesis of more receptors on the surface of the cells of the target organ. this is known as

Respuesta :

The answer is Up-regulation.  One of the best description of the process of up-regulation is an Increase the number of surface receptors.  Acts as transcribing factor and binds to DNA, activating a gene. From binding to DNA before a hormone binds to the receptor.