Abstract
The role of minerals in the events that led to the origin of life is discussed with regard to (1) their catalytic role for the formation of RNA-like oligomers from their monomers and (2) their protective role for organic molecules formed in space that were delivered to planetary surfaces. Results obtained in the laboratory demonstrate that minerals do catalyze the oligomerization of ribonucleic acid (RNA) monomers to produce short RNA chains. Furthermore, and more importantly, these synthetic RNA chains formed by mineral catalysis serve as a template for the formation of complementary RNA chains, which is a significant finding that demonstrates the role of minerals in the origin of life. Simulation experiments run under Mars-like conditions have also shown that Mars analog minerals can shield the precursors of RNA and proteins against the harmful effects of UV and gamma radiation at the martian surface and 5 cm below the surface.
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