Author: Anonymous

Place the following phases of a B cell’s life history in the correct chronological order where 1 is the 1st step and 6 is the last: negative selection [a] attacking infection [b] finding infection [c] searching for infection [d] repertoire assembly [e] positive selection [f]

The complementarity-determining region (CDR) 1 and CDR2 loops of the T-cell receptor contact the _______.

When expression of _______ is turned off in small pre-B cells, the result is the presence of P nucleotides but an absence of N nucleotides in around 50% of light-chain genes.

Which of the following statements regarding T-cell receptor recognition of antigen is correct?

The peptide-binding groove of MHC class I molecules is composed of the following extracellular domains

Immature B cells develop into B cells in the

All of the following are highly polymorphic except

IgG possesses [one] binding sites for antigen, and the T-cell receptor possesses [two] binding sites for antigen

Adrenocortical insufficiency is also referred to as

A student studying pediatric hematological disorders learns that anemia can occur in several ways, including which of the following?  Select all that apply.  Write the letter(s) of your choice(s). A. acute or chronic blood loss B. altered shape of RBC’s C. decreased RBC production D. increased RBC production E. increased reticulocyte count