Organization of DNA in Dipteran Polytene Chromosomes as Indicated by Polarized Fluorescence Microscopy

See allHide authors and affiliations

Science  11 Feb 1966:
Vol. 151, Issue 3711, pp. 689-691
DOI: 10.1126/science.151.3711.689


Analysis of the polarization of fluorescence from Drosophila virilis polytene chromosomes stained with acridine orange suggests that the DNA in the interband regions of these chromosomes cannot be in a supercoiled configuration, but must lie parallel to the chromosome axis.