An RNA ligase ribozyme assembled from three RNA strands, each synthesized by a polymerase ribozyme. (IMAGE)

Proceedings of the National Academy of Sciences

An RNA ligase ribozyme assembled from three RNA strands, each synthesized by a polymerase ribozyme.

Caption

An RNA ligase ribozyme assembled from three RNA strands, each synthesized by a polymerase ribozyme.

Credit

Image courtesy of David P. Horning and Gerald F. Joyce.

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