This is one reason that the same hormone can trigger different effects in different tissues. For example, epinephrine binds to four different receptors in different tissues-- eliciting a different response from each.
A cell line refers to a population of cells from a multi cellular organism which normally has a fixed multiplication rate but due to mutation, the cells now have capacity to proliferate indefinitely. Cell lines are usually used to cultivate more cells. A cultured cell line which does not show density independent inhibition or anchorage is a tumored cell. This observation shows that the cell exhibit properties of tumors.
<span>a. three or four proteins attached to a membrane monosaccharide on the surface of red blood cells.
Specifically, the type of </span>proteins, glycoproteins and glycolipids found on red blood cells determine blood type.