Specific translocations are associated with some leukemias breast cancer pancreatic cancer colon cancer TRUE ANSWER : ? YOUR ANSWER : ?
Chronic granulomatous disease results from a failure to perform oxidative burst. This deficiency would be most likely to interfere with CTL killing of viruses infected cell processing of virus peptides macrophage intracellular killing of bacteria dendritic cell activation to become a mature APC TRUE ANSWER : ? YOUR ANSWER : ?
Combined cellular and humoral immune deficiencies result from lack of all of the following except transporter of antigen peptides (TAP) a thymus class II MHC HIV infection of CD4+ T cells TRUE ANSWER : ? YOUR ANSWER : ?
Retinoblastoma is due to a mutation in a tumor supressor cyclin viral gene kinase TRUE ANSWER : ? YOUR ANSWER : ?
Which of the Rous sarcoma virus has a homologous cellular protein? v-ha-src v-src v-ha-ras c-src TRUE ANSWER : ? YOUR ANSWER : ?
The HIV virus infects primarily cells in the immune system liver cells brain cells red blood cells TRUE ANSWER : ? YOUR ANSWER : ?
To treat HIV infections using drugs, the major problem is that the drugs interfere with normal digestion the drugs are rapidly degraded the drugs that are good inhibitors cannot by synthesized the virus particles with altered (mutant) proteases arise TRUE ANSWER : ? YOUR ANSWER : ?
Infants are most susceptible to bacterial infection due to low circulating levels of IgG at 3-12 months of age in utero (before birth) at 12-24 months of age at 0-3 months of age TRUE ANSWER : ? YOUR ANSWER : ?
Difficulties with somatic gene therapy arise from all of the following except inserting a gene so that it will function properly limited life span of more mature hematopoietic cells GVHD caused by mature T cells in the transplanted cells transducing genetic material into stem cells TRUE ANSWER : ? YOUR ANSWER : ?
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 failure of Th2 cells to provide co-stimulation for B cell isotype switching failure of B cells to provide co-stimulation for Th2 activation activation of B cells by T-independent antigens failure of Th2 cells to provide co-stimulation for B cell proliferation TRUE ANSWER : ? YOUR ANSWER : ?