In which blood corpuscles, the HIV undergoes replication and produces progeny viruses?
- B-lymphocytes
- Basophils
- Eosinophils
- TH cells
Answer
(4) TH cells
Solution
After entering the body, HIV first infects macrophages, where its RNA is copied into viral DNA by reverse transcriptase.
The virus then enters helper T-lymphocytes (TH cells), replicates there and produces progeny viruses.
The progeny viruses attack other TH cells, so their number falls progressively.
Answer: (4)