The Origin of Homochirality in Living Systems

Why are all proteins based on L-amino acids and not d, and why do D-sugars predominate over L-sugars in living systems on 

So let s think about this pool of water containing this complex mixture of organic molecules. If we quite reasonably assume that water was in its liquid state, we have quite a narrow temperature range to consider, namely, 0-100°C. The primordial earth had billions and billions of pools and perhaps a billion 

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