NEET Biology question

At which stage of HIV infection does one usually show symptoms of AIDS?

(A)When viral DNA is produced by reverse transcriptase
(B)When HIV replicates rapidly in helper T-lymphocytes and damages a large number of theseCorrect
(C)With 15 days of sexual contact with an infected person
(D)When the infecting retrovirus enters host cells

Answer: (B)

Solution

After HIV infects helper T-lymphocytes (macrophages initially), it replicates repeatedly, progressively destroying large numbers of helper T-cells; it is only once this depletion becomes substantial,

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Question ID VK-122695