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Published October 9, 1964 | public
Journal Article

Electron Microscopy of Single-Stranded DNA: Circularity of DNA of Bacteriophage ϕX174

Abstract

The single-stranded DNA of coliphage ϕX174 has been examined with the electron microscope by a modification of the protein-monolayer-adsorption technique. The molecules were found to be circular with a total length of 1.77 ± 0.13 microns.

Additional Information

© 1964 American Association for the Advancement of Science. 20 July 1964. Supported in part by grants from the Atomic Energy Commission and the National Aeronautics and Space Administration, by grant AI 01267 from the National Institute of Allergy and Infectious Diseases, by grant CA 02245 from the National Cancer Institute, and by grant RG 6965 from the National Institutes of Health. We thank Susan G. Johnson who took the electron micrographs, and Katherine Le Blanc, Kristin Chung, and John Polacheck, who traced and measured lengths.

Additional details

Created:
August 19, 2023
Modified:
October 25, 2023