Both α:β and γ:δ TCR’s are restricted to recognize antigens only when the antigen is bound by and presented by either MHC class I or MHC class II molecules.

Which chemokine/s direct/s a B cell out of the blood stream and into a secondary lymphoid tissue toward the T cell area?

Unproductive rearrangement of the BCR genes on both chromosomes leads to:

MHC restriction:

What is present during the first checkpoint in B-cell maturation?

How many hypervariable regions (HV’s) does the (a) alpha chain of a T-cell receptor have?

What is present during the first checkpoint in B-cell maturation?

Which of the following is true about the pre-B-cell?

Successful rearrangement of ______ leads to the deletion and inactivation of the ______ due to its location.

In which of the following stages are the Ig genes for the light chain still in their germline configuration?