The names of James Watson and Francis Crick are inextricably linked with the discovery of the DNA double helix. And if you’ve been paying attention, you’ll know that credit is also due to Rosalind Franklin, Maurice Wilkins and Ray Gosling too.

But what about Elwyn Beighton, Fred Griffith or Rudolf Signer? In this episode we’re unwinding history to uncover some of the less well-known stories behind the discovery of the structure and function of DNA.