title: Comparative aspects of DNA organization in Metazoa.
abstract: Data on sequence organization in metazoa are reviewed and tabulated. It is shown that the features of sequence organization previously observed in Xenopus DNA are extremely widespread. At least 70% of DNA fragments 2,000-3,000 nucleotides long contain both single copy and repetitive sequence in all the organisms examined except Drosophila.
mesh_terms: D000818:Animals; D001483:Base Sequence; D049872:Bivalvia; D003386:Brachyura; D003063:Cnidaria; D004247:DNA / Q000032:analysis*; D004331:Drosophila melanogaster; D007448:Invertebrates; D008974:Mollusca; D009711:Nucleotides / Q000032:analysis*; D010125:Ostreidae; D010802:Phylogeny; D010986:Platyhelminths; D051381:Rats; D012617:Sea Urchins; D014981:Xenopus
chemical_list: D009711:Nucleotides; D004247:DNA