what are 3 types of effector cell
cytotoxic, helper, and regulatory T cells
what do effector b cells produce
antibodies
cytokines
what is clonal expansion
Cells that have rearranged the right gene segments bind antigen. Antigen binding triggers cell division.
If the variable region can bind to an antigen it triggers the B-cell to proliferate. This is called clonal expansion.
when do T-cells proliferate
after antigens are taken up and degraded by phagocytosis
what cells present antigen to helper T-cells
Dendritic cells and macrophages