FIG. 4.

Gel electrophoretic analysis of RNAs extracted from Δγ381 and wt FHV particles. RNA was extracted with phenol-chloroform from gradient-purified virions and electrophoresed through a denaturing 1% agarose-formaldehyde gel. Nucleic acids were visualized by staining with ethidium bromide. Lane 1, RNA size markers; lane 2, RNA extracted from Δγ381 particles; lane 3, RNA extracted from wt particles.