T cells undergo positive selection in the thymus,which means they __________.
A) react against self antigens
B) develop surface antigen receptors
C) remain alive but unresponsive
D) die and macrophages phagocytize them
E) multiply and form clones of identical T cells

Question

Quizplus · Accepted Answer

T cells undergo positive selection in the thymus, which means they develop surface antigen receptors.

T Cells Undergo Positive Selection in the Thymus,which Means They