Not all of the human genome code for proteins. Which of the following characteristics describes about 50 percent of the human genome ? A( Genes that code for proteins
B( Sequences that regulate genes that code for proteins
C( Genes that code For RNA molecules
D( highly repetitive sequence
E( imprinted sequences

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.