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Related Experiment Videos

Symmetries throughout organic evolution

A García-Bellido1

  • 1Centro de Biología Molecular Severo Ochoa, Universidad Autónoma de Madrid, Cantoblanco, Spain.

Proceedings of the National Academy of Sciences of the United States of America
|December 10, 1996
PubMed
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Biological systems inherit physicochemical symmetries, but increasing complexity breaks some operational symmetries, leading to novelties. This recurrent process drives the acquisition of regularity and stability across life

Area of Science:

  • * Explores the intersection of physics, chemistry, and biology.
  • * Focuses on the principles of symmetry in living systems.

Background:

  • * Life's complexity arises from physicochemical foundations.
  • * Inherited symmetries from physics and chemistry are present in biology.
  • * Increasing biological complexity alters these inherited symmetries.

Purpose of the Study:

  • * To investigate how symmetries evolve with increasing biological complexity.
  • * To differentiate between structural and operational symmetries in biological systems.
  • * To understand the role of symmetry breaking in generating biological novelty.

Main Methods:

  • * Theoretical analysis of symmetry principles in biological organization.
  • * Comparative study of symmetry across different levels of biological complexity.

Related Experiment Videos

  • * Conceptual framework for understanding novelty through symmetry breaking.

    • Main Results:

    • * Identified two types of biological symmetries: structural and operational.
    • * Demonstrated that breaking operational symmetries drives biological novelty.
    • * Observed a recurrent pattern of novelty, regularity, and stability acquisition.

    Conclusions:

    • * Biological novelty emerges from the breaking of operational symmetries.
    • * This process is fundamental to the progressive increase in life's complexity.
    • * Symmetry breaking and subsequent stabilization are key to evolutionary development.