What are the sources of resistance in the environment?
A. Hospital, industries, farms
B. Only hospitals
C. Only industries
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Antibiotic-producing bacteria prevent suicide:
A. By synthesizing an inactive cytoplasmic precursor
By modifying the antibiotic target
C. By expelling the antibiotic
D. Using all three mechanisms
Among the following options, which one is wrong?Antibiotic resistance genes:
Are naturally present in many microorganisms producing antibiotics.
B. Were common in pathogenic bacteria before antibiotics were used in medicine.
C. Were transferred from antibiotic producers to pathogenic bacteria after the use of antibiotics in medicine.
Among the following answers, which one is necessary to transfer plasmids by conjugation between two bacteria?
A. Pilus
Bacteriophage
C. Insertion sequence
All the bacteria from the same species are resistant to third generation cephalosporin. Among the following options, which one is NOT correct?
A. This is the wild type phenotype.
B. This is an acquired resistance mechanism.
C. This is a natural resistance mechanism
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