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GS Paper IUPSC Prelims 1997
Health & Medicine
Question No. 503Interactive Test Mode
00:00
+2-0.66

Q503. Alpha-keratin is a protein, present in:

Alpha-keratin is a protein, present in:

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 1997 • Science and Technology

Correct Answer: Option (B) — Skin

Concept & Option Breakdown

Standard Reference Verified

Alpha-keratin is an insoluble, fibrous structural protein found extensively in epidermal appendages and tissues of vertebrates, including skin, hair, nails, claws, hooves, and horns.

Elimination Heuristic & Exam Approach

Keratin is the structural protein of skin, hair, and nails.

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Question Specifications & Syllabus Mapping

Examination & YearUPSC Civil Services Preliminary Examination 1997 (Q503)
Paper & Marking SchemeGS Paper I • 2 Marks (-0.66 Negative for incorrect response)
Syllabus Subject & TopicScience and Technology → Health & Medicine
Official Answer KeyOption (B) — Skin

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Frequently Asked Questions — UPSC Prelims 1997 Q503

What is the official answer for UPSC Prelims 1997 GS Paper I Question 503 (Science and Technology)?

The official UPSC answer key for this 1997 Science and Technology (Health & Medicine) question is Option (B): "Skin". Correct attempts carry 2 Marks with -0.66 Negative penalty for wrong answers.

Which UPSC Prelims syllabus topic does this 1997 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?

Keratin is the structural protein of skin, hair, and nails.

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