#gene  a self-replicating protein molecule that occupies a fixed place on a chromosome; a unit of heredity
  supertype:  protein_molecule__proteinmolecule  any large molecule containing chains of amino acids linked by peptide bonds
  subtype:  dominant_gene  allele  genetic_marker  lethal_gene  linkage_group  modifier_gene  mutant_gene  nonallele  operator_gene  oncogene  recessive_gene  proto-oncogene  regulatory_gene  repressor_gene  structural_gene  suppressor_gene  X-linked_gene  Y-linked_gene
  part of:  chromosome  a threadlike body in the cell nucleus that carries the genes in a linear order
     part of:  cell_nucleus__nucleus__nucleu__karyon  a part of the cell containing DNA and RNA and responsible for growth and reproduction
        part of:  cell  the basic structural and functional unit of all organisms; cells may exist as independent units of life (as in monads) or may form colonies or tissues as in higher plants and animals
           part of:  living_thing__organism__being  a living (or once living) entity that has (or can develop) the ability to act or function independently

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