One Type of Bare Lymphocyte Syndrome Is Caused by a Genetic

question 41

Multiple Choice

One type of bare lymphocyte syndrome is caused by a genetic defect in MHC class II transactivator (CIITA) ,which results in the inability to synthesize MHC class II and display it on the cell surface.The consequence of this would be that

• A)B cells are unable to develop
• B)CD8 T cells cannot function
• C)CD4 T cells cannot function
• D)intracellular infections cannot be eradicated
• E)peptides cannot be loaded onto MHC molecules in the lumen of the endoplasmic reticulum.

---

Definitions:

Neurotransmitters

Chemicals that transmit signals across a synapse from one neuron to another in the brain.

Neuron

A specialized cell transmitting nerve impulses; a nerve cell, which is the fundamental building block of the nervous system.

Excite

To cause a heightened state of energy or activity in a physical or psychological context.

Action Potentials

Action potentials are rapid, temporary changes in the electrical charge of a cell's membrane, allowing for the transmission of signals in nerve and muscle cells.