In this episode from our centenary series exploring 100 ideas in genetics, we’re looking at mergers and acquisitions - but in a biological rather than a financial sense. We find out what happens when two cells decide to move in together, unpack the history of genetic engineering and bleat on about the story of Dolly the Sheep.Full shows notes including transcript and music credits at GeneticsUnzipped.comGenetics 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. Audio production by Hannah Varrall.