What explanation describes the primary function of the cell in the table? A The cell can reproduce. B The cell can make proteins. C The cell can produce energy for cellular functions. D The cell can take in and remove substances and water.

Environmental impacts on evolution : mastery test

Is there any solid scientific evidence that humans have been cloned?

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.