When cells lose their ability to regulate the cell cycle, they can divide at an accelerated rate and form a clump of cancer cells. This mass of cells is referred to as- a tumor
an embryo
a gland
an organ

Imagine a self-reactive t cell that has not undergone clonal deletion in the thymus (that is to say, it has escaped central tolerance). if it encounters self antigen in the absence of an infection or inflammation, what will happen to this self-reactive t cell? (select two answers) (a) the t cell undergoes clonal expansion. (b) the t cell gains effector functions. (c) the t cell undergoes apoptosis. (d) the t cell becomes activated. (e) the t cell becomes anergic.