Nucleated erythrocytes from the newt Notopthahmus viridescens were spread on water, the dispersed chromatin picked up on carbon-formvar grids, fixed with paraformaldehye, critical point dried and shadowed with platinum. Images were obtained with the Wisconsin high voltage TEM at 1MEV. For this micrograph, the grid was tilted to 45 degrees. A similar micrograph tilted to 55 degrees providing a stereo pair with an oblique 3D view of the tangled and irregular chromatin fibers is grouped with this image.
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