the effects of hydroxyurea on escherichia coli b/5 physiology ( increases in cell mass , number of viable cells , and deoxyribonucleic acid [ dna ] , rna , and protein concentrations ) were studied in an attempt to find a concentration that completely inhibits dna synthesis and increase in number of viable cells but has little or no effect on other metabolic processes .
C0012854
deoxyribonucleic acid
C0598312
dna synthesis