PNAS is the world's most-cited multidisciplinary scientific serial. It publishes high-impact research reports, commentaries, perspectives, reviews, colloquium papers, and actions of the Academy. In ...

In the latest shake-up for scientific dogma, research has demonstrated that eukaryotic cells can convert RNA sequences back into DNA, through a misunderstood, ‘error-prone’ polymerase. Historically, ...

A gibbous moon hangs over a lonely mountain trail in the Italian Alps, above the village of Malles Venosta, whose lights dot ...

The 1950s are widely recognized as one of the most important decades in biology. This is, in large part, due to the discovery of the structure of DNA and the launch of the field of molecular biology.

Researchers discovered that the enzyme RNA polymerase II recognizes and transcribes artificially added base pairs in genetic code, a new insight that could help advance the development of new vaccines ...