title: Cloning of the yeast ribosomal DNA repeat unit in SstI and HindIII lambda vectors using genetic and physical size selections.
mesh_terms: D001483:Base Sequence; D003090:Coliphages / Q000235:genetics; D004247:DNA; D004262:DNA Restriction Enzymes; D004274:DNA, Recombinant; D004279:DNA, Viral; D012335:RNA, Ribosomal; D012441:Saccharomyces cerevisiae / Q000235:genetics
chemical_list: D004274:DNA, Recombinant; D004279:DNA, Viral; D012335:RNA, Ribosomal; D004247:DNA; D004262:DNA Restriction Enzymes