15. A man with normal color vision marries a woman with normal color vision. BUT Mom's father was colorblind, and she is a carrier. If this couple
has a son, what is the chance he is colorbling?
*
0% of boys are colorblind
25% of boys are colorblind
50% of boys are colorblind
100% of boys are colorblind

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.