His lab has moved on to working on RNA. "By the year 2000, I started to pay more attention to fundamental questions related to the origin of life" (RNA world hypothesis). "Here the big question is whether RNA was in fact the first genetic polymer, or whether RNA was preceded by some simpler, easier to make or more robust genetic material". Recent work suggests that the RNA hypothessis is still alive.= = = Hoopoe = = =
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