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The pre-B-cell receptor provides an important signal that induces transition of pro-B cells to pre-B cells. An important characteristic of this receptor is that:

V-DJ rearrangement occurs at which stage of B cell development?

The pre-B cell receptor consists of:

Which of the following is NOT a cell that is produced from a common lymphoid progenitor?

This cytokine-transforming growth factor(TGF)

Death by neglect refers to which of the following?

An IL-2R (recpetor) that has a high affinity for IL-2 is

A disaster is best defined as:

If an antigen (cooties A) is injected into the thymus of fetal mice, this will induce a large increase in peripheral T cells able to respond to APC’s presenting MHC:Cooties A peptides

Which goal is associated with crisis intervention? (Select all that apply)