Chromosome Fibers from an Interphase Nucleus

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Science  11 Jan 1963:
Vol. 139, Issue 3550, pp. 120-121
DOI: 10.1126/science.139.3550.120


Red blood cells of the newt, Triturus, were spread on a water surface and picked up with carbon-coated grids for examination in the electron microscope. The identifiable nuclear material consists entirely of long fibers having a diameter of approximately 400 to 600 Å. Similar fibers have been seen in human and grasshopper chromosomes prepared in the same manner.