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6. Which of the following expresses the CD3 surface antigen?
A. Granulocytes
B. T cells
C. Monocytes
D. B cells
7. Polymorphonuclear leukocytes (or PMNs)
A. can be attracted to the site of infection following activation of complement
B. are derived from bone marrow stem cells
C. are a type of phagocyte that can engulf and kill bacteria
D. all of the above
8. Major Histo Compatibility Complex (MHC) is a collection of genes arrayed on
A. chromosome 21 in man, chromosome 6 in mice
B. chromosome 6 in man, chromosome 21 in mice
C. chromosome 17in man, chromosome 6 in mice
D. chromosome 6 in man, chromosome 17 in mice
9. CD8 surface antigen is present in
A. cytotoxic T cells
B. suppressor T cells
C. both (a) and (b)
D. none of these
10. Treatment with bacterial endotoxins results in blast formation in
A. B cells
B. T cells
C. monocytes
D. none of these
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