Satellite Deoxyribonucleic Acid from Bacillus cereus Strain T

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Science  08 Jul 1966:
Vol. 153, Issue 3732, pp. 182-183
DOI: 10.1126/science.153.3732.182


DNA isolated from exponentially growing cultures of Bacillus cereus T has a single component (density 1.696 g cm-3) in a cesium chloride density gradient whereas DNA isolated from spores shortly after the initiation of germination has two components: a major one (density 1.696 g cm-3) and a satellite (density, 1.725 g cm-3). The DNA of both components is doublestranded. By the first cell division there is no satellite DNA.