fifteen to fifty percent of wild-type levels of viral dna are synthesized at the nonpermissive temperature in ts48- and ts303-infected cells , indicating that immediate-early and early gene functions are intact ( or nearly so ) and that the block in ts48 and ts303 is in a regulatory event subsequent to that exhibited by other mutants in complementation group 1-2 which are dna- .
C0012939
viral dna
C0012854
dna