Abstract
Asporogenous mutants of Bacillus subtilis were examined for the change in template specificity of ribonucleic acid (RNA) polymerase characteristic of wild-type cells undergoing sporulation. Mutants blocked at stages II, III, and IV showed a changed specificity of the enzyme after the end of growth and were in this respect indistinguishable from the wild type. The RNA polymerase of eight stage-zero mutants (out of nine tested) which possess mutations that map at six distinct loci retained the template specificity of vegetative cells.
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