title: Length heterogeneity in the DNA of vaccinia virus is eliminated on cloning the virus.
mesh_terms: D001483:Base Sequence; D004262:DNA Restriction Enzymes; D004279:DNA, Viral / Q000235:genetics*; D008970:Molecular Weight; D014616:Vaccinia virus / Q000235:genetics*
chemical_list: D004279:DNA, Viral; D004262:DNA Restriction Enzymes