Tetracycline inhibits protein synthesis by ?: (A) Inhibiting initiation and causing misreading of mRNA, (B) Binding to 30 S subunit and inhibits binding of aminoacyl tRNA, (C) Inhibiting peptidyl transferase activity, (D) Inhibiting translocation
Answer is B. Ans. is 'b' i.e., Binding to 30S Subunit and inhibits binding of aminoacyl tRNA o Tetracycline interact with small ribosomal subunits, blocking access of aminoacyl- tRNA to the mRNA-ribosome complex. o Tetracyclines bind to 30 S subunit of ribosome.