Latest RNA world hypothesis Stories
A research published in Proceedings of National Academy of Sciences rejects the theory that the origin of life stems from a system of self-catalytic molecules capable of experiencing Darwinian evolution without the need of RNA or DNA and their replication.
A key question in the origin of biological molecules like RNA and DNA is how they first came together billions of years ago from simple precursors.
Scientists who study RNA have faced a formidable roadblock: trying to examine RNA's movements in a living cell when they can't see the RNA.
A team of Scripps Research scientists has created a new analog to DNA that assembles and disassembles itself without the need for enzymes.
Now, a pair of Scripps Research Institute scientists has taken a significant step toward answering that question.
Researchers have published a ground-breaking study that characterizes the common ancestor of all life on earth, LUCA (Last Universal Common Ancestor).
Scientists have confirmed for the first time that an important component of early genetic material which has been found in meteorite fragments is extraterrestrial in origin.
The crystal structure of a molecule from a primitive fungus has served as a time machine to show researchers more about the evolution of life from the simple to the complex.
A new study provides insight into what may have been the first self-replicating molecule to arise billions of years ago on the evolutionary path toward the emergence of life.
How does chemistry become biology? Solving this question is important for research into lifeâ€™s origins, and also for the search for life elsewhere in the universe. In this interview, Dimitar Sasselov, professor of astronomy at Harvard University, describes a new comprehensive study that will try to figure out how chemical systems cross over into the world of the living.
- In medieval musical notation, a sign or neume denoting a shake or trill.