Which one of the following does not present antigens ?
Correct answer: D. NK cells (Netural killer cells)
- A. Macrophages
- B. Dendritic cells
- C. Langerhan's cells
- D. NK cells (Netural killer cells)
Explanation
Dendritic cells, Langerhans cells and macrophages are professional antigen-presenting cells, whereas natural killer cells primarily kill infected or abnormal cells without presenting antigen. NK cells recognise altered MHC and stress signals instead.
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