the double-stranded dna with single-stranded regions can , depending upon the length of the single strand , behave as `` '' native '' '' dna or `` '' denatured '' '' dna on methylated albumin kieselguhr ( mak ) column chromatography , using mak chromatography we have separated the dna into a saltelutable fraction composed of primarily double-stranded molecules and an alkaline-elutable fraction containing double-stranded nucleic acid with variable length , single-stranded regions .
C0012935
stranded dna
C0012854
the