NEET 2011
- Exam
- NEET
- Year
- 2011
- Subject
- Zoology
- Chapter
- Human Health and Diseases
NEET 2011 · Zoology · Human Health and Diseases
At which stage of HIV infection does one usually shows symptoms of...
At which stage of HIV infection does one usually shows symptoms of AIDS?
Options
- AWhen viral DNA is produced by reverse transcriptase
- BWhen HIV replicates rapidly in helper T-lymphocytes and damages large number of these
- CWith 15 days of sexual contact with an infected person
- DWhen the infecting retrovirus enters host cells
Correct answer
B. When HIV replicates rapidly in helper T-lymphocytes and damages large number of these
Step-by-step solution
HIV enters into T-lymphocytes, replicates and produces progeny viruses. The progeny viruses released in the blood other helper T-lymphocytes. This is repeated leading to a progressive decrease in the number of T-lymphocytes in the body of the infected person. During this period, the person suffers from bouts of fever, diarrhoea and weight loss. The person starts suffering from infections.