Diploid and Endoreduplicated Cells: Measurements of DNA

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Science  10 Jan 1964:
Vol. 143, Issue 3602, pp. 139-140
DOI: 10.1126/science.143.3602.139


Two-wavelength microspectrophotometry has shown that endoreduplicated cells in an x-irradiated culture of human leukocytes contained about twice as much DNA as diploid cells from the same culture. This supports the assumption that endoreduplicated cells represent a form of polyploidy.