The organization of rat liver nuclei in vitro depends on the ionic milieu. Turbidity measurements of nuclear suspensions in the presence of varying concentrations of divalent cations have been correlated with nuclear ultrastructure. The concentration of MgCl2 (2 mM) at which turbidity of nuclear suspensions is maximal and chromatin condensation appears most extensive is the same concentration t...

INTRODUCTION ............................................................................. 2190 I. EXAMPLES OF NEW PROPERTY RIGHTS ....................................... 2193 A. Spectrum ................................................................................... 2194 1. Shannon’s Law and the Cumulative Nature of Interference ................................................... 2194 2. G...