Concider DNA a vast archive of all the blueprints of the body. RNA is the copy of the original schematic and proteins are made from this copy. Proteins are made from three bases at the time. Three bases equals one amino acid, and many amino acids in one chain equals a protein. The protein might be a hormone, which relays a message, but not all proteins are ment for messaging. Some are e.g. building blocks or enzymes.
When I was young, there was a god with infinite power protecting me. Is there anyone else who felt that way? And was sure about it? but the first time I fell in love, I was thrown down - or maybe I broke free - and I bade farewell to God and became human. Now I don't have God's protection, and I walk on the ground without wings, but I don't regret this hardship. I want to live as a person. -Arina Tanemura