A) destruction of killer-T-cells
B) destruction of helper-T-cells
C) lack of mrerferons
D) autoimmunity
Correct Answer: B
Solution :
AIDS is Acquired Immune Deficiency Syndrome, which is characterised by reduction in the number of helper T-cells because of infection ofHIV. HIV is a RNA containing virus. Interferon are proteinous substances, which are released from virus infecting host cells. Autoimmunity is the self resistance of body for any infection. Killer T-cells reach the site of infection or agglutination and get attached to antigen containing micro-organism.
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