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Science 8 July 1966:
Vol. 153. no. 3732, pp. 182 - 183
DOI: 10.1126/science.153.3732.182
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Articles

Satellite Deoxyribonucleic Acid from Bacillus cereus Strain T

H. A. Douthit 1 and H. O. Halvorson 1

1 Department of Bacteriology, University of Wisconsin, Madison

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.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)