Mutations are quantum jumps between isomeric states of the gene molecule.

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• Spontaneous mutations are rare isomeric transitions between stable molecular states separated by high energy barriers.claim0.846
  Schrödinger identifies quantum-jump transitions between isomeric states as the physical mechanism of mutation.
• If mutations are isomeric jumps between states with different energy levels separated by a high barrier, then the forward and reverse mutation rates should differ, with the transition from higher to lower energy occurring more frequently.hypothesis0.839
  Hypothesis on the directionality of mutation rates.
• If the gene is a large molecule with discrete quantum states and high energy barriers between isomeric configurations, then it will exhibit long-term stability and rare spontaneous mutations.hypothesis0.822
  The core predictive hypothesis derived from Delbrück's model.
• The hereditary substance is a single huge aperiodic molecule capable of discrete configuration changes (mutations) via quantum jumps.hypothesis0.792
  Schrödinger's central hypothesis, later confirmed by discovery of DNA structure.
• Isomeric Change (Quantum Jump)concept0.778
  A discontinuous rearrangement of atoms between isomeric states, representing a mutation in the gene molecule.
• If X-rays produce mutations by energetic single events (ionization), then their efficiency should not depend on the gene's spontaneous mutability.hypothesis0.772
  Another testable hypothesis about mutation induction.
• Quantum theory reveals discreteness of atomic/molecular states with energy levels and quantized transitions.finding0.761
  Foundational quantum-mechanical fact that Schrödinger leverages to explain why molecular configurations are stable against small thermal perturbations.
• MCA generates cryptic variance: many mutations neutralized by developmental regulation persist as a hidden diversity pool exploitable in future environments.claim0.750
  Subclaim.