Which of these bacterial components is least likely to useful antigens?

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Which of these bacterial components is least likely to useful antigens? Answer: Ribosomes

Ribosomes are internal structures, not typically exposed to immune surveillance. Therefore, they are least likely to serve as effective antigens compared to other surface-exposed components.

Question context

This question is part of 🦠 Microbiology within the broader 🧬 Medical Science subject and appears in the SPSC – Sindh Public Service Commission preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.