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GS Paper IUPSC Prelims 2002
Biotechnology & Genetics
Question No. 26Interactive Test Mode
00:00
+2-0.66

Q26. With reference to the latest developments in stem cell research, consider the following statements 1. The only source of human stem cells are the embryos at blastocyst stage 2. The stem cells can be derived without causing destruction to blastocysts. 3. The stem cells can regenerate themselves in vitro virtually forever. 4. Indian research centres also created a few cell lines which can be developed into many types of tissues. Which of these statements are correct?

With reference to the latest developments in stem cell research, consider the following statements

  1. The only source of human stem cells are the embryos at blastocyst stage
  2. The stem cells can be derived without causing destruction to blastocysts.
  3. The stem cells can regenerate themselves in vitro virtually forever.
  4. Indian research centres also created a few cell lines which can be developed into many types of tissues. Which of these statements are correct?
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 2002 • Science and Technology

Correct Answer: Option (D) — 3 and 4

Concept & Option Breakdown

Standard Reference Verified

Statements 1 and 2 are incorrect: Stem cells are also derived from adult somatic tissues, umbilical cord blood, and induced pluripotent sources. Derivation of embryonic stem cells at the time conventionally led to the destruction of the blastocyst.

Statement 3 is correct: Stem cell lines possess the unique ability for long-term self-renewal and in vitro replication under ideal culture conditions.

Statement 4 is correct: Premier Indian research institutions, including NCBS and ICMR, developed indigenous stem cell lines capable of multi-lineage differentiation.

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Question Specifications & Syllabus Mapping

Examination & YearUPSC Civil Services Preliminary Examination 2002 (Q26)
Paper & Marking SchemeGS Paper I • 2 Marks (-0.66 Negative for incorrect response)
Syllabus Subject & TopicScience and Technology → Biotechnology & Genetics
Official Answer KeyOption (D) — 3 and 4

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Frequently Asked Questions — UPSC Prelims 2002 Q26

What is the official answer for UPSC Prelims 2002 GS Paper I Question 26 (Science and Technology)?

The official UPSC answer key for this 2002 Science and Technology (Biotechnology & Genetics) question is Option (D): "3 and 4". Correct attempts carry 2 Marks with -0.66 Negative penalty for wrong answers.

Which UPSC Prelims syllabus topic does this 2002 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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