The simple inorganic molecules that make up the air and the oceans typically contain only a few atoms, and often just two or three. Many biological molecules contain thousands. Everything on Earth is made of atoms, most of which are closely packed together in the form of minerals. A few contain billions. These molecules are not just large, they are also precisely structured. Furthermore, those structures can be recreated with atom-by-atom accuracy. Life can make extraordinary variety by following quite simple strategies. How is the DNA and Proteins related ?