It's been 150 years since the first article was published about the molecule key to life as we know it — DNA. With help from researcher Pravrutha Raman, Short Wave producer Berly McCoy explains how DNA is stored in our cells and why the iconic double helix shape isn't what you'd see if you peeked inside your cells right now. Read more about the discovery of DNA: https://bit.ly/3wNe7hnCurious about all the other biology that defines us? Email the show at shortwave@npr.org — we're all ears ... and eyes and toes and ... a lot of things. Thanks, DNA!