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THE CONTENT AND RELATIVE BASE RATIOS OF RIBONUCLEIC ACID IN AMOEBA
Abstract:
The amount and relative base ratios of ribonucleic acid (RNA) in the nucleus and cytoplasm of Amoeba proteus and A. dubia, and of homospecies cells obtained by nuclear transfer with A. proteus, have been determined by microelectrophoresis. In A. proteus the average amounts of RNA in the nucleus and the cytoplasm were 134. micromicrograms and 2520. micromicrograms; in A. dubia the averages for the nucleus and cytoplasm were 67. micromicrograms and 1427. micromicrograms. The relative base ratio of RNA of the nucleus is similar to that of the RNA of the cytoplasm within a species, but the two species differed in this respect. Homospecies nuclear transfer did not affect the relative base ratio or amount of RNA.
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