Question

This drug inhibits the initiation step of translation

• A. ricin
• B. streptomycin
• C. tetracycline
• D. cyclohexylamine

Answer 1

Answer:

B. streptomycin

Streptomycin inhibits translation by binding to the 30S subunit of the bacterial ribosome, specifically to the 16S rRNA, which disrupts the normal reading of the mRNA codon sequence, leading to misreading of the genetic code and ultimately halting protein synthesis, causing bacterial cell death