![]() Combined with previous observations of DAP-mediated chemistries and the constructive role of RDNA chimeras, the results reported here help set the stage for systematic investigation of a systems chemistry approach of RNA–DNA coevolution. Concomitantly, oligomerization (≈18–31 %) is observed with predominantly 3′,5′-phosphodiester DNA linkages, and some (<5 %) pyrophosphates. Intriguingly, the presence of pyrimidine deoxynucleos(t)ides increased the yields of purine deoxynucleotides (≈20 %). The pyrimidine deoxynucleoside 5′-O-amidophosphates are formed in good (≈60 %) yields. ![]() Watson 1 (1953) Traducción del inglés al español (cotejada con el latín): Haroldo S. Basada en la primera traducción al inglés (1575) Redactada y concluida al inglés por Philip S. As further support, we show that diamidophosphate (DAP) with 2-aminoimidazole (amido)phosphorylates and oligomerizes deoxynucleosides to form DNA-under conditions similar to those of ribonucleosides. Comentario sobre la Epístola a los Gálatas (1531/1535) por: Martín Lutero, D.D. University have been involved in the creation of PROGENE, the dairy. Recent demonstrations of RNA–DNA chimeras (RDNA) enabling RNA and DNA replication, coupled with prebiotic co-synthesis of deoxyribo- and ribo-nucleotides, have resurrected the hypothesis of co-emergence of RNA and DNA. Catarina (Cooperativa Central Catarinense de Leite).
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