title: Reversion instability in the galactose operon of Escherichia coli.
abstract: The gal-3 mutation, which had been shown previously to produce unstable revertants, was combined in three instances with recA, a mutation which suppresses recombination. Unstable revertants were produced in the gal-3 recA recombinants qualitatively as frequently as in the absence of the recA gene, and it is concluded that a recombination mechanism is not the basis of the instability observed.
mesh_terms: D004926:Escherichia coli / Q000378:metabolism / Q000528:radiation effects; D005690:Galactose / Q000096:biosynthesis; D005796:Genes; D005827:Genetics, Microbial; D008967:Molecular Biology; D009154:Mutation; D009876:Operon; D011995:Recombination, Genetic; D014466:Ultraviolet Rays
chemical_list: D005690:Galactose