Three processes that occur in cells are described in the box. Substances pass through the lipid bilayer of a cell from areas of high concentration to areas of low
concentration.
• Substances move through protein channels of the lipid bilayer of a cell from areas of high concentration to
areas of low concentration.
Substances move through the lipid bilayer of a cell from areas of low concentration to areas of high
concentration.

Leila has dimples because she received a gene copy from her father that coded for dimples. this means that dimples are an example of a trait that is

Mrna decodes information from the original dna master plan to build proteins in the during the process of ribosomes.

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.