under spreading conditions which inhibit the activity of endogenous nucleases and proteases , various morphologically distinct types of chromatin are seen : ( 1 ) largely condensed chromatin in the form of 30-40 nm supranucleosomal globules which aggregate to form knobbly 40-60 nm fibres and unravel into 12 nm nucleosomal filaments ;
C0008546
chromatin
C0028623
nucleosomal