Discussion
The maturation of T cells and the production of particular T cell receptors occurs in the
Answer: B
Correct answer: thymus gland
T cells are made in the bone marrow but mature in the thymus - which is what the T stands for. There they rearrange their receptor genes and are then screened twice: cells whose receptor cannot recognise self MHC die, and cells that react too strongly to the body’s own antigens are deleted. Only about 2% survive both tests.
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