velocity sedimentation of chromatin ( dna with associated chromosomal proteins ) in neutral sucrose gradients indicated that the localized energy from the 125i disintegrations , which gave about 1 double-strand break/disintegration plus an additional 1.3 single strand breaks , selectively fragmented the [ 125i ] chromatin into pieces smaller than the [ 3h ] chromatin .
C0008633
chromosomal
C0008546
chromatin