Cairns-Smith suggested that the present essential elements of biology-nucleic acids and catalyzing proteins-evolved on a kind of prebiotic scaffolding. Ultimately the scaffolding disappeared, leaving behind the biochemistry that now controls the processes of all living things. The vanishing supporting structure, in the view of Cairns-Smith, could have been clay.
Life Search, Time-Life Books.
Tuesday 17 September 2013
Hybrid Drawing : Human Clay/Prebiotic World.
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