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PCB 3233 IMMUNOLOGY - EXAM 3 QUESTIONS AND ANSWERS

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PCB 3233 IMMUNOLOGY - EXAM 3 QUESTIONS AND ANSWERS Which cell types can become a plasma cell? - Answer️️ -All the above (a memory B-cell, an activated B-cell, a centrocyte The types of human MHC II presenting molecules are: - Answer️️ - HLA-DP, HLA-DQ, HLA-DR which present peptide to C...

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  • August 29, 2024
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©SOPHIABENNET@2024/2025 Wednesday, August 21, 2024 12:13 PM

UNIVERSITY OF CENTRAL FLORIDA (UCF)



PCB 3233 IMMUNOLOGY - EXAM 3
QUESTIONS AND ANSWERS

Which cell types can become a plasma cell? - Answer✔️✔️-All the
above (a memory B-cell, an activated B-cell, a centrocyte

The types of human MHC II presenting molecules are: - Answer✔️✔️-
HLA-DP, HLA-DQ, HLA-DR which present peptide to CD4 T-cells

__________ has an alpha chain and a beta chain in their structure
while ________ only has an alpha chain in its structure? -
Answer✔️✔️-MHC II, MHC I

What process(es) are used after activation to make MHC I and II
binding sites better? - Answer✔️✔️-None of the above (Somatic
recombination, somatic hypermutation, isotype switching

Burkitt's lymphoma is due to a translocation of the ________ gene
next of one of the ________ genes. - Answer✔️✔️-MYC, Ig

You would expect the IgA and IgB genes to be turned on (expressed)
during which stage/s? - Answer✔️✔️-All the above (the small pre B
cell, mature B cell, immature B cell

T-cell receptor diversity is established - Answer✔️✔️-Before antigen
stimulation




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, ©SOPHIABENNET@2024/2025 Wednesday, August 21, 2024 12:13 PM

UNIVERSITY OF CENTRAL FLORIDA (UCF)


The types of human MHC I presenting molecules are: - Answer✔️✔️-
HLA-A, HLA-B and HLA-C which present peptide to CD8 T-cells

Receptor editing - Answer✔️✔️-A & B (is done on the light chain, can
be utilized in an attempt to rescue a B-cell that has a self-reactive
receptor

Which one of the following is in the correct sequence? - Answer✔️✔️-
Early Pro-B, Late Pro-B, Large Pre-B, Small Pre-B, Immature B-cell

When/where are N and P nucleotide additions added to the variable
regions (binding site? - Answer✔️✔️-During somatic recombination

Which chemokine/s call/s a B-cell into the follicle of a secondary
lymphoid tissue? - Answer✔️✔️-CXCL 13

Which cell/s is/are lymphocyte/s? - Answer✔️✔️-None of the above
(neutrophils, macrophages, dendritic cells

Which of the following is/are considered proto-oncogenes? -
Answer✔️✔️-A & B (BCL2, MYC)

A mature B-cell has: - Answer✔️✔️-IgM, IgD and IgA and IgB on the
surface

True of false: CCL19 and CCL21 direct a B-cell out of the blood
stream, across HEV's and into a secondary lymphocyte toward the
T-cell era. - Answer✔️✔️-True



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