Which of the Following Antibiotics is an Inhibitor of DNA

Question

Which of the following antibiotics is an inhibitor of DNA gyrase
A)Ethambutol
B)Ciprofloxacin
C)Tobramycin
D)Neomycin

Accepted Answer

Ciprofloxacin is a fluoroquinolone antibiotic that inhibits DNA gyrase, an enzyme required for bacterial DNA replication and repair. Ethambutol is used to treat tuberculosis and acts by inhibiting arabinosyl transferases involved in mycobacterial cell wall synthesis. Tobramycin and neomycin are aminoglycoside antibiotics that work by binding to the 30S ribosomal subunit and disrupting bacterial protein synthesis.