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GS Paper IUPSC Prelims 1996
Health & Medicine
Question No. 516Interactive Test Mode
00:00
+2-0.66

Q516. Consider the following statements. AIDS -is transmitted: 1. By sexual intercourse 2. By blood transfusion 3. By mosquitoes and other blood sucking insects 4. Across the placenta

Consider the following statements. AIDS -is transmitted:

  1. By sexual intercourse
  2. By blood transfusion
  3. By mosquitoes and other blood sucking insects
  4. Across the placenta
Select the correct option below (or cross out options to eliminate)
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Official Answer Key & Detailed Solution

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Official UPSC Answer KeyUPSC Prelims 1996 • Science and Technology

Correct Answer: Option (B) — 1, 2 and 4 are correct

Concept & Option Breakdown

Standard Reference Verified

HIV/AIDS is transmitted via unprotected sexual contact (1), infected blood/blood product transfusions (2), and vertically from mother to fetus across the placenta or via breast milk (4). It is not transmitted by mosquitoes or insect bites (3) because the virus cannot replicate within or be biologically transmitted by insects.

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Question Specifications & Syllabus Mapping

Examination & YearUPSC Civil Services Preliminary Examination 1996 (Q516)
Paper & Marking SchemeGS Paper I • 2 Marks (-0.66 Negative for incorrect response)
Syllabus Subject & TopicScience and Technology → Health & Medicine
Official Answer KeyOption (B) — 1, 2 and 4 are correct

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Frequently Asked Questions — UPSC Prelims 1996 Q516

What is the official answer for UPSC Prelims 1996 GS Paper I Question 516 (Science and Technology)?

The official UPSC answer key for this 1996 Science and Technology (Health & Medicine) question is Option (B): "1, 2 and 4 are correct". Correct attempts carry 2 Marks with -0.66 Negative penalty for wrong answers.

Which UPSC Prelims syllabus topic does this 1996 question belong to?

This question belongs to GS Paper I under the subject "Science and Technology" and micro-topic "Health & Medicine". You can explore all repeated questions from Health & Medicine in Acme AI's 3D Prelims PYQ Realm or practice 50 full-length and sectional tests in the APT Prelims Test Series.

How can I solve this Health & Medicine UPSC Prelims question using option elimination?

To solve Health & Medicine questions in UPSC Prelims, identify extreme modifiers, verify core NCERT conceptual definitions, and eliminate mutually contradictory statement pairs before locking your final option.

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