Jonathan responds to your texts and tweets, is joined in studio for all the latest science stories for Newsround and speaks to one of our two guests featured on the show. Listen and subscribe to Futureproof with Johnathan McCrea on Apple Podcasts and Spotify. Download, listen and subscribe on the Newstalk App. You can also listen to Newstalk live on newstalk.com or on Alexa, by and asking: 'Alexa, play Newstalk'
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If you paid attention to your Leaving Cert biology you’ll remember that there are 4 letters that make up DNA’s alphabet, G,C,A and T Except that’s not actually the case any more. But it’s not because your text book was wrong or that we’ve renamed our fundamental building blocks. Scientists have actually created new synthetic letters to help spell out the story of life. But why? And what might those new letters allow us to do? Floyd Romesberg, Professor in the Department of Chemistry and Head of the Romesberg Lab at The Scripps Research Institute joined Jonathan to discuss.