In Patients with Hyper IgM Syndrome,there Is a Genetically Based

question 7

Multiple Choice

In patients with hyper IgM syndrome,there is a genetically based deficiency in expression of CD40 ligand.In addition to defects in antibody isotype switching,these patients have defects in T cell-mediated immune responses and become infected with intracellular parasites.Which one of the following normal functions of CD40 ligand is important in T cell-mediated immunity?

• A)CD40-dependent isotype switching is required to produce antibody isotypes that activate T cells.
• B)CD40 ligand is required for CTL killing of CD40-expressing infected cells.
• C)CD40 ligand is required for maturation of CD4⁺ T cells in the thymus.
• D)CD40 ligand on activated T cells binds to CD40 on antigen-presenting cells (APCs),and this enhances the expression of B7-1,B7-2,and cytokines by the APCs.
• E)CD40 ligand on T cells binds to B7-1 and B7-2 on APCs,and this enhances the function of the APCs.

Understand the influence of major sociological events and revolutions on the development of sociology.

Understand the concept of temperament and how it influences reactions to new experiences.

Grasp the basic principles of evolutionary personality psychology and the role of natural selection in shaping human characteristics, including personality.

Describe and understand the concept of cerebral asymmetry and its measurement techniques.

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Definitions:

Acculturation

The process of cultural change and psychological change that results following meeting between cultures.

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