题目内容

It was proposed that the antibiotic producers (bacteria producing antibiotics) were the source of resistant genes present in pathogenic bacteria. Considering these genes, which one of the following answers is not correct?

A. Resistant genes from antibiotic producers encode related proteins catalyzing similar resistance mechanisms
B. Resistant genes from antibiotic producers behave as resistant genes when introduced in non-antibiotic producers
C. Resistant genes from antibiotic producers could be easily transferred from producers to pathogens

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Among the following answers, which one can favor a de novo mutation?

A. Bacterial death
Bacterial multiplication
C. Exposition to antibiotic

Group B Streptococcus (GBS) isolates are always susceptible to:

A. Pernicillin
B. Tetracycline
C. Erythromycin

How many mechanisms are part of horizontal gene transfer?

A. 2
B. 3
C. 4

Among the following statements concerning the risk factors of the dissemination of resistance in the environment. Which one is NOT correct?- 未答复

A. Traveling.
B. Antibiotic selective pressure.
C. In-vitro diagnostic procedures.