Q. X-linked hyper IgM syndrome, resulting in high levels of serum IgM and low levels of serum IgG, is caused by a defect in CD40L expression. The specific immune event that would be prevented by a defective CD40L would be

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Q. The HIV virus infects primarily

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Q. Chronic granulomatous disease results from a failure to perform oxidative burst. This deficiency would be most likely to interfere with

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Q. Difficulties with somatic gene therapy arise from all of the following except

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Q. A monoclonal antibody (mAb) specific for the 2,4-dinitrophenyl (DNP) hapten might also bind

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Q. Retinoblastoma is due to a mutation in a

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Q. An autoimmune disease is

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Q. If Class IIMHC is not expressed in the thymus, the resulting immune deficiencies would include all of the following except reduced

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Q. Specific translocations are associated with

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Q. To treat HIV infections using drugs, the major problem is that

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Q. The primary reason for AIDS, a deadly disease is that it

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Q. DiGeorge's syndrome is characterized by the lack of a thymus The mouse model closest to this human disease would be a

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Q. Which of the Rous sarcoma virus has a homologous cellular protein?

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Q. Infants are most susceptible to bacterial infection due to low circulating levels of IgG

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Q. The chemical, typically released by the body in an allergic response is

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