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COMPLEXITY EXPLAINED: 9. How Did Complex Molecules Like Proteins and DNA Emerge Spontaneously?

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COMPLEXITY EXPLAINED: 9. How Did Complex Molecules Like Proteins and DNA Emerge Spontaneously?


Note: For previous parts to Dr. Wadhawan’s series on complexity check out the ‘Related Posts’ found at the bottom of this article.

How could the blind forces of Nature create large and highly information-laden molecules like DNA and proteins just by random processes? DNAimage9_1 carries information for the synthesis of proteins, but it requires the prior availability of certain protein molecules for performing its genetic duties. Such proteins help the double-helix DNA molecule to uncoil itself and split into two strands for replication purposes. Therefore, DNA and certain proteins must have emerged independently, by some efficient (and therefore reasonably likely) chemical processes. But how? The answer has to do with the chemical evolution of autocatalytic sets of molecules, which could consume energy-rich molecules and other precursors (’food’) to ‘reproduce’. These molecules were the predecessors of proteins and DNA etc., and thence of life.

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Posted in Naturalism, Vinod Kumar WadhawanComments (20)

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