Mycobacterium tuberculosis actually appears faintly stained or "ghost-like" in a Gram stain due to its high lipid content in the cell wall, not because it stains blue; the color association with Gram-positive bacteria is due to the thick peptidoglycan layer they possess, not the lipid content.
Which of the statements regarding gram staining is wrong?
Review the verified answer and explanation for this SPSC – Sindh Public Service Commission past-paper question on CampusFin.
Question context
This question is part of 🔬 General Science within the broader 🌐 Current Affairs & GK 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.