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10 Cards in this Set
- Front
- Back
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Exogenous Ag includes all of the following EXCEPT:
a. bacterial toxins b. parasites c. bacteria d. virus e. ragweed pollen |
D
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Human class MCH I a chain molecules are:
a. b2-microglobulin b. HLA-A, HLA-B, HLA-C c. HLA-DR, HLA-DP, HLA-DQ d. li |
B
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Signaling to a Tc cell that a liver cell in infected with hepatitis virus depends on:
a. binding of li to MHC I until the peptide is loaded b. binding of TCR on Tc cell to MHC II on the infected cell c. binding of processed Ag to liver cell MHC I d. both b and c are correct |
C
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Endogenous Ag presentation requires delivery of Ag peptides to the ER by:
a. MHC I and li b. calnexin and tapasin c. HLA-DM d. leader protein sequences e. TAP-1 and TAP-2 |
E
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Exogenous Ag is processed:
a. in acidified endosomes b. in the presence of b2-microglobulin c. by the cytosolic processing pathway d. by every nucleated cell |
A
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Ag binding by MHC I:
a. accomodates many different peptides around 10 amino acids in size b. preferentially binds peptides 13-18 amino acids in length c. occurs at a site formed by the folding of a1 and b2-microglobulin d. occurs only on APCs e. a and c are correct |
A
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True or False
If a family has 4 children, no two of them will have the same MHC genotype |
FALSE
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True or False
MHC I expression is associated with stimulation of Ab production |
FALSE
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True or False
MHC I and MHC II are less Ag specific than Igs. |
TRUE
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A relative risk ratio (RR) equal to 1 means you have a 99% chance of developing a particular autoimmune disease relative to the rest of the population.
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A relative risk ratio (RR) equal to 1 means you have a 99% chance of developing a particular autoimmune disease relative to the rest of the population.
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