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Trans-dominance of dnaA mutants in Escherichia coli
Abstract:
Temperature sensitivity of growth and DNA synthesis was tested in merogenotes heterozygous for the dnaA allele. All combinations tested (F dnaA+/dnaA5, F dnaA+/dnaA46, F dnaA+/dnaA204, F dnaA5/dnaA+, F dnaA204/dnaA+) were temperature sensitive. The mutant dnaA allele is thus trans-dominant to the wild type allele.