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Chemistry and the missing era of evolution
1Department of Chemistry, University of Glasgow, Glasgow, G12 8QQ, UK. grahamcs@chem.gla.ac.uk
Chemistry (Weinheim an Der Bergstrasse, Germany)
|February 9, 2008
Summary
Life's complex molecular machinery may have evolved from simpler inorganic materials, predating the RNA world hypothesis. This suggests a pre-RNA era of natural selection based on inorganic replication and catalytic effects.
Area of Science:
- Origin of life studies
- Astrobiology
- Molecular evolution
Background:
- Darwinian evolution relies on complex molecular machinery.
- The RNA world hypothesis presents a paradox regarding the origin of RNA monomers.
- Geochemical plausibility of RNA monomer supply is questioned.
Purpose of the Study:
- To propose a pre-RNA era for the origin of life.
- To suggest an alternative to the RNA world hypothesis.
- To explore the role of inorganic materials in early molecular evolution.
Main Methods:
- Conceptual framework development.
- Literature review on origin of life theories.
- Hypothesizing inorganic material replication and catalytic effects.
Main Results:
- A plausible pathway for molecular evolution prior to RNA.
- Inorganic materials as a basis for early natural selection.
- Replication and catalytic functions arising from inorganic permutations.
Conclusions:
- The origin of life may not require an immediate RNA world.
- Inorganic self-replication offers a potential precursor to RNA-based life.
- Further research into geochemistry and inorganic catalysis is warranted.
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