23. Diphtheria toxin, tetracycline and streptomycin inhibit: (A) DNA repair (B) DNA replication (C) transcription (D) translation
23. Diphtheria toxin, tetracycline and streptomycin inhibit:
(A) DNA repair
(B) DNA replication
(C) transcription
(D) translation
Answer
Answer: (D) translation
Explanation: Diphtheria toxin, tetracycline, and streptomycin inhibit translation by interfering with protein synthesis. They do not specifically target DNA repair, replication, or transcription.