title: Alterations in the genomes of avian sarcoma viruses.
mesh_terms: D001355:Alpharetrovirus / Q000235:genetics*; D000818:Animals; D002460:Cell Line; D002472:Cell Transformation, Viral; D004262:DNA Restriction Enzymes; D004279:DNA, Viral / Q000032:analysis; D003673:Defective Viruses / Q000302:isolation & purification; D005816:Genetic Complementation Test; D006378:Helper Viruses / Q000378:metabolism; D009154:Mutation; D011784:Quail; D012333:RNA, Messenger / Q000032:analysis; D011995:Recombination, Genetic; D014759:Viral Envelope Proteins; D014764:Viral Proteins / Q000032:analysis; D014771:Virion / Q000032:analysis
chemical_list: D004279:DNA, Viral; D012333:RNA, Messenger; D014759:Viral Envelope Proteins; D014764:Viral Proteins; D004262:DNA Restriction Enzymes