A woman talks about how she and her siblings cracked a secret code their mother came up with to prevent them from figuring out the gifts left for them under the Christmas tree. This week, NPR's Rachel ...

Cancers, degenerative diseases: deregulation of our cells' internal communication pathways is at the root of many conditions. Microtubules -- microscopic protein filaments -- play a crucial role in ...

DNA consists of a code language comprising four letters which make up what are known as codons, or words, each three letters long. Interpreting the language of the genetic code was the work of ...