L'ARN aux Origines de la Vie sur Terre ? — Le Monde à ARN

Et si la vie sur Terre avait commencé par de l'ARN, avant l'apparition de l'ADN et des protéines ? C'est l'hypothèse dite du Monde à ARN.

Détails et compléments dans le billet de blog qui accompagne la vidéo : https://scienceetonnante.com/blog/202...

Merci à Philippe Nghe de l'ESPCI pour avoir répondu à mes questions !

Le serveur Discord de Science étonnante ➡️   / discord  

00:00 Introduction
00:59 Les caractéristiques de la vie
04:01 LUCA, notre ancêtre commun
06:12 L'ARN
09:08 Les biopolymères programmables
13:28 L'ARN catalyseur : les ribozymes
17:09 L'expérience de Miller-Urey
19:27 Des nucléotides qui se forment spontanément ?
22:20 L'autoréplication de l'ARN en question

Écrit et réalisé par David Louapre © Science étonnante

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