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Question No. 32Interactive Test Mode
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Q32. Assertion (A): Dolly was the first cloned mammal. Reason (R): Dolly was produced by in vitro fertilization.

Assertion (A): Dolly was the first cloned mammal. Reason (R): Dolly was produced by in vitro fertilization.

Select the correct option below (or cross out options to eliminate)

Official Answer Key & Detailed Solution

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Official UPSC Answer KeyUPSC Prelims 1999 • Science and Technology

Correct Answer: Option (C) — A is true but R is false

Concept & Option Breakdown

Standard Reference Verified

Assertion (A) is true: Dolly the sheep (born 1996) was the first mammal cloned from an adult somatic cell.

Reason (R) is false: Dolly was not produced via in vitro fertilization (which involves fusion of sperm and ovum). She was cloned via Somatic Cell Nuclear Transfer (SCNT), where a somatic cell nucleus was placed into an enucleated ovum.

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Question Specifications & Syllabus Mapping

Examination & YearUPSC Civil Services Preliminary Examination 1999 (Q32)
Paper & Marking SchemeGS Paper I • 2 Marks (-0.66 Negative for incorrect response)
Syllabus Subject & TopicScience and Technology → Biotechnology & Genetics
Official Answer KeyOption (C) — A is true but R is false

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Frequently Asked Questions — UPSC Prelims 1999 Q32

What is the official answer for UPSC Prelims 1999 GS Paper I Question 32 (Science and Technology)?

The official UPSC answer key for this 1999 Science and Technology (Biotechnology & Genetics) question is Option (C): "A is true but R is false". Correct attempts carry 2 Marks with -0.66 Negative penalty for wrong answers.

Which UPSC Prelims syllabus topic does this 1999 question belong to?

This question belongs to GS Paper I under the subject "Science and Technology" and micro-topic "Biotechnology & Genetics". You can explore all repeated questions from Biotechnology & Genetics 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 Biotechnology & Genetics UPSC Prelims question using option elimination?

To solve Biotechnology & Genetics 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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