Q. Which antibiotic inhibits interaction between t-RNA and m-RNA during bacterial protein synthesis ?
A) Erythromycin
B) Neomycin
C) Streptomycin
D) Tetracycline
Explanation
[Solution from source] Tetracycline binds the 30S ribosomal subunit and blocks aminoacyl-tRNA from pairing with the mRNA codon at the A site. Erythromycin acts on the 50S subunit and blocks peptide movement, not tRNA-mRNA binding. Answer (4).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.