The Washington Post rounds up how scientific thought on genes has evolved since Gregor Mendel tended his pea plants. It’s a good place to send those English majors who don’t quite understand how biology has changed from "one gene, one protein" to include non-coding elements, those insulators, micro-RNAs, exon-splicing enhancers, or 3'-untranslated hairpins that regulate the protein-encoding genes.