The hereditary substance is a single huge aperiodic molecule capable of discrete configuration changes (mutations) via quantum jumps.

Entities in the same semantic neighborhood but without a typed relation to this one — candidates for new edges or unrecognized duplicates.

• No alternative to molecular explanation of hereditary substance exists; physical laws leave no other possibility.claim0.806
• Mutations are quantum jumps between isomeric states of the gene molecule.claim0.792
  The discontinuous, jumping nature of mutations is explained by the discrete energy levels of the gene molecule.
• 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.hypothesis0.786
  The core predictive hypothesis derived from Delbrück's model.
• Aperiodic structure of genetic molecules enables exponential diversity of encodable information compared to periodic crystals.claim0.782
  Schrödinger argues that non-repeating molecular structure (aperiodic solid) allows information density far exceeding periodic/crystalline alternatives.
• Quantum theory permits both long-term structural stability and discrete discontinuous changes—both required for genetic inheritance and mutation.finding0.774
• Spontaneous mutations are rare isomeric transitions between stable molecular states separated by high energy barriers.claim0.759
  Schrödinger identifies quantum-jump transitions between isomeric states as the physical mechanism of mutation.
• The mechanism of heredity is closely related to, nay, founded on, the very basis of quantum theory.claim0.758
  The assertion that gene stability and mutations are explained by quantum mechanics.
• "We believe a gene—or perhaps the whole chromosome fibre—to be an aperiodic solid."concept0.757
  Schrödinger's hypothesis about the physical nature of the hereditary substance.