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Journals and Conferences
A simplified procedure is described in which interruption of mating and recombinant selection both take place on plates containing selective medium plus nalidixic acid.
Genes ofEscherichia coli were grouped according to the “biochemical relatedness” of the enzymes they specifiy, using two schemes to determine relatedness: similarity of reaction or similarity of… (More)
Many pairs of genes whose gene products are functionally related lie either 90 degrees or 180 degrees apart on the circular map of the E. coli chromosome. A mechanism of evolution is proposed that… (More)