ELECTRON MICROSCOPY OF THE  REPLICATIVE FORM OF THE DNA OF THE BACTERIOPHAGE PHI-X174.
Electron micrographs of surface films containing the replicative form of the DNA of bacteriophage, øX174 show ring structures, whose average contour length is 1.64 micro, which have the characteristic appearance of double-stranded DNA throughout most of their length.
D003090:Coliphages; D004247:DNA; D004279:DNA, Viral; D004583:Electrons; D008853:Microscopy; D008854:Microscopy, Electron; D012106:Research
D004279:DNA, Viral; D004247:DNA
COLIPHAGES; DNA, VIRAL; EXPERIMENTAL LAB STUDY; MICROSCOPY, ELECTRON