in order to know if there is a difference in dna polymerase-a or -d activities in the parental v79 ( wt ) and aphr-4-2 cells , dna polymerases were partially purified from the parental and the mutant cells using sequential centrifugation and column chromatographies on deae-cellulose ( de23 and de52 ) to remove dna polymerases-beta and -gamma .
C0012892
dna polymerases
C0525039
dna