What are two main components of a virus

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.

Which diagram best represents the chromosomes that would be found in a two new skin cells produced as a result of this process?

Explain why it’s important for scientists to study the sun. list at least two challenges researchers face when examining earth’s nearest star.