Please take a moment to do our brief listener survey - https://geneticsunzipped.com/survey - thanks very much.In this episode from our centenary series exploring 100 ideas in genetics, we’re exploring the dark heart of the genome, untying nature’s shoelaces, and looking back at the discovery of RNA splicing.Genetics Unzipped is written and presented by Kat Arney, and produced by First Create the Media for the Genetics Society - one of the oldest learned societies in the world dedicated to supporting and promoting the research, teaching and application of genetics. Production by Hannah Varrall.Full show notes, music credits and references online at https://geneticsunzipped.com/blog/2019/7/18/018-cut-paste-pair-repeat