Abstract
WHEN certain strains of Escherichia coli are deprived of a required amino-acid their production of ribosomal ribo-nucleic acid (rRNA) and soluble RNA is reduced. The removal of any amino-acid has this effect. Such strains are said to be stringent. Strains mutant at the RC locus do not respond in this way to the removal of a required amino-acid and are said to be relaxed1,2.
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SURZYCKI, S., HASTINGS, P. Control of Chloroplast RNA Synthesis in Chlamydomonas reinhardi. Nature 220, 786–787 (1968). https://doi.org/10.1038/220786a0
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DOI: https://doi.org/10.1038/220786a0
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