Original: Apart from the Millerâ "Urey experiment, the next most important step in research on prebiotic organic synthesis was the demonstration by Joan OrÃ that the nucleic acid purine base, adenine, was formed by heating aqueous ammonium cyanide solutions.
Simplified: The next most important step in research on prebiotic organic synthesis was the demonstration by John OrÃ that the nucleic acid purine base, adenine, was formed by the simple heating of solutions of ammonium cyanide.