DNA is a double-stranded coil of information that consists of pairs of chemical groups called “bases.” RNA acts as a messenger delivering instructions from the DNA to proteins to essentially carry out the plan-information originating in the DNA. Think of DNA as a roadmap and RNA as a courier delivering the directions to the proteins, the workers who actually get the job done. Because all life on earth has DNA, we can know that on some level all organic life is related—a concept that we’ll discuss