What are the basic properties of hormones and why cud it make them effective in the control of gene expression?

Hormones are essentially chemical molecules (proteins for example), which cause a change in cellular metabolism, hormones in animals are usually transported inside the body via the bloodstream hence they can reach a wide variety of tissues.





Hormones are made by certain types of cells, then are usually secreted from that cell to the bloodstream. other types of cells may have receptors for specific types of hormones. When a hormone is found in blood, and comes in contact with a cell which has the receptor for it. the receptor will bind the hormone, this will lead to a signal transduction sequence: the receptor will change the metabolism in the cell or activateTranscription factors inside the cell which may regulate Gene expression.





Insulin for example is a hormone which affects different kinds of cells, when insulin is found in the bloodstream and is later bound by different tissues of the body. It will ease the uptake of glucose to cells.





Other hormones affect other parts of cellular metabolism and gene expression.





So the main property that it diffuses in the blood and can be bound to cellular receptors which in turn give signals to change cellular activity.What are the basic properties of hormones and why cud it make them effective in the control of gene expression?
the base property of a hormone is that it affects a target, and it's genes that control hormones not the other way around.