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IL-2 is produced by one cell and the same IL-2 stimulates that same cell. This type of cytokine activity is called:

Properdin functions to stabilize C3 molecules in which of the complement pathways?

Enzyme linked immunosorbant assays (ELISAs) can use antibodies specific to a certain molecule and a standard curve of known concentrations of that molecule to enable the measurement of the concentration of that molecule in a bodily fluid. For example, an ELISA could be used to measure IL-6 levels in plasma. 

If somehow, in spite of several different regulatory steps, your body produced a Bcell/plasma cell that produced autoreactive IgM antibodies to an epitope in your liver; which complement pathway would be responsible for potential liver tissue damage?

Which molecules are found in all three pathways?

Which immunoglobulin causes allergic reactions due to release of histamine from mast cells?

T helper cells recognize which of the following?

Which antibody is found mainly as a dimer in mucosal secretions?

The antigen specificity of a B cell is determined:

Which term refers to a learning disability affecting the brain’s ability to manage verbal codes?