AI Summary

A study led by Dr. Lluís Ribas de Pouplana, an ICREA researcher at IRB Barcelona, reports the discovery of RNA molecules that can build proteins and appear to retain features of an ancient genetic code. The findings address how the modern correspondence between nucleic‑acid sequences and amino acids may have originated. By analyzing these protein‑building RNAs, the researchers identified patterns suggesting remnants of a primordial coding system. The work provides new insight into one of evolutionary biology’s major unanswered questions.

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