RNA replication

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>Project Assistant Professor Ryo Mizuuchi and Professor Norikazu Ichihashi at the Graduate School of Arts and Sciences at the University of Tokyo,
>and their team, explain how they carried out a long-term RNA replication experiment in which they witnessed the transition from a chemical system towards biological complexity.
>“We found that the single RNA species evolved into a complex replication system: a replicator network comprising five types
>of RNAs with diverse interactions, supporting the plausibility of a long-envisioned evolutionary transition scenario,” said Mizuuchi.
https://www.u-tokyo.ac.jp/focus/en/press/z0508_00210.html