Immune System
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Question 1 [CLICK ON ANY COICE TO KNOW RIGHT ANSWER] |
Major Histo Compatibility Complex (MHC) is a collection of genes arrayed on
chromosome 21 in man, chromosome 6 in mice | |
chromosome 6 in man, chromosone 21 in mice | |
chromosome 17in man, chromosome 6 in mice | |
chromosome 6 in man, chromosome 17 in mice |
Question 2 [CLICK ON ANY COICE TO KNOW RIGHT ANSWER] |
Large parasites such as helminthes may be killed extracellularly by the action of
basophils | |
monocytes | |
eosinophils | |
neutrophils |
Question 3 [CLICK ON ANY COICE TO KNOW RIGHT ANSWER] |
CD8 surface antigen is present in
cytotoxic T cells | |
suppresssor T cells | |
both (a) and (b) | |
none of these |

Question 4 [CLICK ON ANY COICE TO KNOW RIGHT ANSWER] |
Immunity is not long lasting to
influenza | |
whooping cough | |
diphtheria | |
mumps |
Question 5 [CLICK ON ANY COICE TO KNOW RIGHT ANSWER] |
Which of the following statements is false regarding B cells?
B cells can undergo class switching and produce a different antibody type | |
B one marrow stem cells migrate to the thymus and develop into B cells | |
B cells synthesize antibodies and put them on their cell surface | |
B cells that recognize high concentrations of antigens (self) in the absence of other signals undergo apoptosis in the bone marrow |
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There are 5 questions to complete.