All animals and plants are made of cells. Animal and Plant cells have features in common, such as a nucleus, cytoplasm, cell membrane, mitochondria and ribosomes.
RNA polymerase is the enzyme that connects and proofreads them.
<span><span>The carboxyl end of the G- protein-coupled receptor (GPCR) is located in the cytosol (it is intracellular). Carboxyl terminus is one of the most variable structures of the protein. All of the GPCR are </span><span>structural and functional similar, unlike their ligands.</span></span>