the period of dna synthesis c during the cell cycle was determined over a broad range of generation times in slowly growing , steady-state batch cultures in the exponential phase and in chemostat cultures of three strains of escherichia coli , strains b/r a , b/r k , and b/r tt , utilizing measurements of average amounts of dna per cell and cell survival after radioactive decay of 125i incorporated into the dna of synthesizing cells .
C0598312
dna synthesis
C0012854
dna