David Roy Smith

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Non-sorbitol-fermenting, beta-glucuronidase-negative Escherichia coli O157:H7 strains are regarded as a clone complex, and populations from different geographical locations are believed to share a(More)
In photosynthetic eukaryotes, relative silent-site nucleotide substitution rates (which can be used to approximate relative mutation rates) among mitochondrial, plastid, and nuclear genomes (mtDNAs,(More)