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In the lab you have two groups of mice. You transfected group 1 with a gene that makes them produce more IL2. The other group 2 you did not transfect. Then you inoculated both groups with tumor cells. You noticed an enhanced immunity in group 1. This enhanced immunity can be explained by proliferation of which of the following cell type?

A- Neutrophils
B- Macrophages
C- T lymphocytes
D- Dendritic cells
E- Mast cells
 

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C) T lymphocytes

The correct ans is C) T lymphocytes

Its a straight forward qn. Let me show you the entire immunological t-cell activation and proliferation pathway.

tcell_2.gif
click image to enlarge

T_cell_activation.png
click image to enlarge
 
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