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Human Health and Diseases question

2014 · Q74
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Human Health and Diseases question

2014 · Q74

NEETBiologyHuman Health and DiseasesMCQ+4 / −1
At which stage of HIV infection does one usually show symptoms of AIDS ?
  1. A
    Within 15 days of sexual contact with an infected person.
  2. B
    When the infected retro virus enters host cells.
  3. C
    When HIV damages large number of helper T−Lymphocytes.
  4. D
    When the viral DNA is produced by reverse transcriptase.
View written solutionFree

Correct answer: C

AIDS is a disorder of cell-mediated immune system of the body. Virus responsible for AIDS is HIV (Human immunodeficiency virus). There is a reduction in the number of helper T-cells which stimulate antibody production by B-cells. This results in the loss of natural defence against viral infection.

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