What are the methods of diagnosis of AIDS ?

Question 41 of 74

Q. What are the methods of diagnosis of AIDS ?

Tamil Nadu DgeTamil Nadu HSC (DGE) Board 2017Subjective· 3mImportance★★★★★

55% · 41/74 Questions

🔒 Locked · start free trial →

You're viewing a preview — the full solution, concept, methods & PYQ mapping are locked.

Start your 14-day free trial to unlock the full solution →

AIDS is diagnosed by detecting HIV antibodies with ELISA, confirmed by Western blot, and monitored using PCR and CD4+ T-cell counts.

Methods of diagnosis of AIDS:

ELISA (Enzyme-Linked Immunosorbent Assay): the standard screening test that detects antibodies produced by the body against HIV in the blood serum. It is widely used because it is quick and inexpensive, but a positive result needs confirmation.
Western blot test: a more specific confirmatory test performed after a positive ELISA result, which detects antibodies against specific HIV proteins, reducing the chance of a false positive.
PCR (Polymerase Chain Reaction): detects the viral RNA/DNA directly, allowing diagnosis even before antibodies develop (the 'window period'), and is useful for early detection and for testing infants born to HIV-positive mothers. …

Start your 14-day free trial to unlock the full solution →

Same / Similar Concept — real previous-year questions on the same or a closely similar concept, not this exact question.

CBSE 2019Set ANNUAL1 markMCQ
$Q. HIV is a member of the sub-family ________.$
(a) Rhabdovirus
(b) Pencillia
(c) Vaccinia
(d) Lentivirinae
›Reveal solutionSolution

HIV belongs to the Lentivirinae, the 'slow virus' subfamily of retroviruses.

HIV (Human Immunodeficiency Virus) is a member of the Retroviridae family and, within it, the Lentivirinae subfamily — lentiviruses cause slowly progressing, long-latency infections, matching HIV's typically years-long asymptomatic period before AIDS develops. Rhabdovirus (e.g., rabies virus) and Vaccinia virus (used in smallpox vaccines) …

Start your 14-day free trial to see the full solution →
CBSE 2018Set ANNUAL1 markMCQ
$Q. The most promising chemotherapeutic agent for treating viral disease is:$
(a) Interferon
(b) Tetracycline
(c) Anthramycin
(d) Ampicillin
›Reveal solutionSolution

Interferon is the most promising chemotherapeutic agent for viral diseases.

Interferons are proteins released by virus-infected cells that make neighbouring cells resistant to viral multiplication. Because viruses replicate inside host cells, antibacterial antibiotics are ineffective against them, so interferon (which specifically blocks viral replication) is the promising antiviral agent.

…

Start your 14-day free trial to see the full solution →
CBSE 2016Set ANNUAL1 markMCQ
$Q. Which converts RNA genome into DNA in HIV ?$
(a) DNA ligase
(b) Restriction endonuclease
(c) Reverse transcriptase
(d) DNA polymerase
›Reveal solutionSolution

Reverse transcriptase is the retroviral enzyme HIV uses to convert its RNA genome into DNA.

As a retrovirus, HIV carries reverse transcriptase inside its virion; after entering a host T-helper cell, this enzyme synthesises a DNA copy from the viral RNA template, and this proviral DNA integrates into the host genome, letting the virus hijack the cell's machinery. DNA ligase joins DNA fragments, restriction endonucleases cut DNA at specific sites, …

Start your 14-day free trial to see the full solution →

←Previous questionQ15 — What are auditory ossicles ?→Next questionQ17 — Explain the phases of healing of bones in fracture.

Q.What are the methods of diagnosis of AIDS ?

Concept understanding — Viral Diseases in Humans

Q.What are the methods of diagnosis of AIDS ?

🎓Unlock everything free for 14 days

Unlock everything free for 14 days