title: Short-period repetitive-sequence interspersion in cloned fragments of sea urchin DNA.
mesh_terms: D000818:Animals; D001483:Base Sequence; D002874:Chromosome Mapping; D004262:DNA Restriction Enzymes; D004274:DNA, Recombinant; D005796:Genes; D009695:Nucleic Acid Renaturation; D012617:Sea Urchins / Q000235:genetics*
chemical_list: D004274:DNA, Recombinant; D004262:DNA Restriction Enzymes