1. Which of the following is a drug that interferes with the process of DNA production in the virus that causes genital herpes?

A. Erythromycin
B. Vancomycin
C. Amantadine
D. Acyclovir

2. Which of the antibiotic is not used as a food preservative?

A. Pimaricin
B. Nisin
C. Tylosin
D. β-lactam antibiotic

3. The most selective antibiotics are those that interfere with the synthesis of

A. bacterial DNA
B. bacterial RNA
C. bacterial cell walls
D. bacterial plasma membrane

4. Cycloserine inhibits

A. alanine racemase
B. D-alanyl – D-alanine synthetase
C. Both (a) and (b)
D. amidase

5. Which antibiotic has a beta-lactam ring?

A. Cephalosporin
B. Penicillin
C. Tetracycline
D. Streptomycin