According to Beer’s Law, which of the following decreases as the concentration of a solution increases?

Lymphoid organs are termed as either primary or secondary.  Which of the following best explains the function of secondary lymphoid organs?

Thank you for a great semester!See you in the Fall 🙂

DNA and RNA are charged particles and will move toward the during electrophoresis.

In an experiment, a mouse strain was discovered that could produce IgM after Ag exposure but could not isotype switch.  A lack of which of the following cells would best explain this lack of isotype switching in this mouse strain?  

After exposure to antigen, a soluble antigen-antibody complex may form.  When the antigen-antibody complex forms,  precipitation occurs.  Maximum precipitation occurs in which zone of this reaction? 

Which of the following is a common property of both immunoglobulin receptors and T-cell receptors (TCRs)?

During B cell development, a very number of B cell receptors are formed, resulting in enormous diversity of antibody molecules.  Which of the following it the name associated with this process?

To distinguish granulocytes, monocytes and lymphocytes in a blood sample, a flow cytometer produces a scattergram separating these cells.  The criteria for separating these cells is based on which of the following?

The bone marrow is the organ where B cell tolerance occurs during fetal development.  Self-reacting cells are killed in this process.  Which of the following best describes the mechanism of this killing process that results in this tolerance?