Which came first: the chicken, the egg, or guanine?

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FIGURE 2.
FIGURE 2.

Visualization of the RNA World scenario. Names of the steps are numbered and shown in black; problems and the paradoxes are listed in red. The lower panel shows an approximate timeline of the main events (black) and reveals the main problem of the RNA World—overlap between the bootstrapping (blue) and the evolution (green) due to using the process of natural selection before the arrival of the ab initio life form.

This Article

  1. Published in Advance June 7, 2023, doi: 10.1261/rna.079613.123 RNA 29: 1317-1324

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  1. August 2026, 32 (8)
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