Select the correct answer from each drop-down menu.
a researcher was studying mutations in bacteria. he found that certain bacteria had changes in their dna that allowed them to be resistant to
antibiotics. this research is an example of
. the mutation will lead to

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.