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I stumbled upon this publication (News at phys.org).
As far as I understand, it is a big step towards replicating RNA systems. They found an RNA enzyme that can synthesize longer RNA molecules, and fully replicate shorter RNA molecules - completely without proteins. It cannot replicate itself (or its corresponding RNA), that would be another huge step.
As far as I understand, it is a big step towards replicating RNA systems. They found an RNA enzyme that can synthesize longer RNA molecules, and fully replicate shorter RNA molecules - completely without proteins. It cannot replicate itself (or its corresponding RNA), that would be another huge step.