Cracking the sugar code: the secret language cells use.

When it comes to coding life, DNA gets all the credit. How many of us have been told that some trait — anything from curly hair to a knack for growing tomatoes — is ‘in our genes’?

Aside from relatives taking credit for things that have nothing to do with them, we are all familiar with the trusty double helix. But what about life’s other language? You have probably…