A researcher creates an antibiotic that binds to a protein present only on B. anthracis (the causative agent of anthrax), lysing the cell from the outside. After a couple of years using this antibiotic, some resistant organisms are found. Which of the following best outlines the mechanism for development of this resistance?

a. mutation in B. anthracis ? altered target ? resistant bacterium
b. cell division of B. anthracis ? altered porins ? resistant bacterium
c. mutation in B. anthracis ? altered porins ? resistant bacterium
d. cell division of B. anthracis ? altered target ? resistant bacterium


Answer: a. mutation in B. anthracis ? altered target ? resistant bacterium

Biology & Microbiology

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