Concept explainers
Price et al. (1999. J. Bacteriol. 181: 2358–2362) conducted a genetic study of the toxin transport protein (PA) of Bacillus anthracis, the bacterium that causes anthrax in humans. Within the 2294-
(a) Which types of nucleotide changes (missense or synonyms) cause amino acid changes?
(b) What is meant by horizontal transfer?
(c) On what basis did the authors conclude that evidence of horizontal transfer is absent from their data?
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Essentials of Genetics (9th Edition) - Standalone book
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