Transcription: Genes are the business end of the whole thing. They're the structures that carry the genetic information, like pea color, from generation to generation. Actually, to use our evolution language, a gene is just a replicator with high copying fidelity. What does that mean? Well, it means that a gene is something that can make a very accurate copy of itself. So a gene can pass from a grandparent to grandchild without being merged with other genes. and usually without changing. But sometimes you do get copying errors. These might be an error in one part, like a misprint in a book, or a sequence mig ...