( biochemistry 11 , 998-1003 , 1972 ) that rna transcribed in vivo in immature chick erythrocytes hybridizes to the dna of only the portions of chromatin from these cells that melt at low temperatures , suggest that this fractionation may separate transcribable dna sequences in chromatin from the repressed segments of a eukaryotic genome .
C0007634
cells
C0008546
chromatin