Killer and Helper cells are part of_______________?
Correct answer: B. T cells
- A. B cells
- B. T cells
- C. Monocytes
- D. Macrophage
Explanation
Helper cells are CD4-positive T cells and killer cells are cytotoxic CD8-positive T cells, so both belong to the T-cell population. B cells instead differentiate into antibody-producing plasma cells.
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