polyacrylamide gel electrophoresis of nucleosomal dna from cells labeled for 24 hr with [ 14c ] thymidine followed by 10 min with [ 3h ] thymidine demonstrates that the internucleosomal spacer of newly replicated chromatin is approximately 20 base pairs shorter than that of total chromatin .
C0028623
nucleosomal
C0007634
cells