#nucleolus_organizer__nucleolusorganizer__nucleolar_organizer__nucleolarorganizer  the particular part of a chromosome that is associated with a nucleolus after nuclear division
  supertype:  #anatomical_structure__structure__complex_body_part__bodily_structure__body_structure  a particular complex anatomical structure; "he has good bone structure"
  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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