title: Synthesis of circular DNA in avian tumor virus particles.
mesh_terms: D001355:Alpharetrovirus / Q000378:metabolism*; D004270:DNA, Circular / Q000096:biosynthesis*; D004279:DNA, Viral / Q000096:biosynthesis*; D014771:Virion / Q000378:metabolism
chemical_list: D004270:DNA, Circular; D004279:DNA, Viral