(IMAGE)

Institute for Research in Biomedicine (IRB Barcelona)

Caption

Schematic illustration of the proposed evolution of transfer RNA (tRNA), from an ancestral mini-helix to the complex three-dimensional structure of modern tRNA. The red dots highlight molecular signatures that may preserve traces of an ancient genetic code.

Credit

IRB Barcelona

Usage Restrictions

Credit must be given to the creator. Only noncommercial uses of the work are permitted. No derivatives or adaptations of the work are permitted.

License

CC BY-NC-ND

Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.