Hybridization of Euglena RNA to the heavy and the light chloroplast DNA components separated in alkaline CsC1 gradients

Chloroplast DNA from Euglena gracilis was separated in an alkaline CsC1 density gradient into a heavy and a light component. The heavy and the light DNA components each contain 18 percent self-complementary nucleotide sequences. Equal masses of the heavy and the light components do not contain equal molar complementary nucleotide sequences. The light DNA component contains sequences complementary to the majority of the chloroplast DNA transcripts. The heavy DNA component contains sequences complementary to chloroplast ribosomal RNA.