Which of the Following Is Not an Example of an Auto-Protective

Multiple Choice

Which of the following is not an example of an auto-protective mechanism used by microbes producing antibiotics?

A) Using a transmembrane pump to export newly synthesized antibiotics
B) Co-expressing genes for membrane-bound protein export pumps and antibiotic production
C) Altering the structure of the 50S ribosomal subunit
D) Producing antibody only during the log phase of growth
E) Synthesizing a precursor form of the antibiotic that is activated only after it has been exported by the microbe