transcription studies with these nuclei in vitro demonstrated features not seen with other eukaryotes : rna synthesis was much greater in the presence of mn2+ than with mg2+ and was sensitive to high concentrations ( 10-100 micrograms/ml ) of alpha-amanitin at all salt concentrations tested ( 25-300 mm ammonium sulphate ) .
C0040649
transcription
C1328948
rna synthesis