(Q50248279)
Statements
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Histidine regulatory mutants in Salmonella typhimurium. IV. A positive selection for polar histidine-requiring mutants from histidine operator constitutive mutants. (English)
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Salmonella typhimurium
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B N Ames
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G R Fink
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T Klopotowski
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1 November 1967
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30
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1
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81-95
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