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Plant Physiology 49:331-334 (1972) © 1972 American Society of Plant Biologists Studies with Deoxyribonucleic Acid from Blue-Green AlgaeDepartment of Biochemistry, Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada, Department of Botany, University of Toronto, Toronto, Ontario, Canada
DNA from two blue-green algae was isolated and characterized. The buoyant densities, thermal denaturation and renaturation, thermal melting values, base compositions, sedimentation coefficients, and molecular weights were determined. Blue-green algal DNA renatured extensively and at a comparable rate to that of bacterial DNA. The similarities among the kinds of DNA from bacteria and blue-green algae were interpreted to reflect a close relationship.
1 Present address: Department of Botanical Sciences, Molecular Biology Institute, University of California, Los Angeles, California, U.S.A.
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