T lymphocytes
A) mature in the spleen and if the spleen is absent or removed early in fetal development no T cells are produced and profound immunodeficiency results.
B) fall into two functionally distinct classes, helper cells and cytotoxic cells, which secrete lymphokines.
C) have TCR (T-cell receptors) which are functional only when bound to the membranes of helper cells and cytotoxic cells.
D) are essential to primary immunity.
E) are screened in the spleen but mature in the bone marrow.

Question

Quizplus · Accepted Answer

The Answer of T lymphocytes
A) mature in the spleen and if the spleen is absent or removed early in fetal development no T cells are produced and profound immunodeficiency results.
B) fall into two functionally distinct classes, helper cells and cytotoxic cells, which secrete lymphokines.
C) have TCR (T-cell receptors) which are functional only when bound to the membranes of helper cells and cytotoxic cells.
D) are essential to primary immunity.
E) are screened in the spleen but mature in the bone marrow.

T Lymphocytes