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Question No. 18Interactive Test Mode
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Q18. Other than resistance to pests, what are the prospects for which genetically engineered plants have been created? 1. To enable them to withstand drought. 2. To increase the nutritive value of the produce. 3. To enable them to grow and do photosynthesis in spaceships and space stations. 4. To increase their shelf life. Select the correct answer using the codes given below:

Other than resistance to pests, what are the prospects for which genetically engineered plants have been created?

  1. To enable them to withstand drought.
  2. To increase the nutritive value of the produce.
  3. To enable them to grow and do photosynthesis in spaceships and space stations.
  4. To increase their shelf life. Select the correct answer using the codes given below:
Select the correct option below (or cross out options to eliminate)

Official Answer Key & Detailed Solution

Ready to check the official UPSC Answer Key?

Click any option above to test yourself under exam conditions, or reveal the explanation directly.

Official UPSC Answer KeyUPSC Prelims 2012 • Science and Technology

Correct Answer: Option (C) — 1, 2 and 4 only

Concept & Option Breakdown

Standard Reference Verified

Statement 1 is correct: Drought-tolerant GM crops (e.g., DroughtGard maize) have been created to survive water scarcity. Statement 2 is correct: Biofortified GM crops enhance nutritional value (e.g., Golden Rice enriched with beta-carotene/pro-vitamin A). Statement 3 is incorrect: Space crop research primarily focuses on environmental chambers, lighting, and hydroponics rather than genetic engineering specifically aimed at extraterrestrial photosynthesis. Statement 4 is correct: Transgenic modifications have been deployed to delay ripening and extend shelf life (e.g., Flavr Savr tomato via antisense technology against polygalacturonase).

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Question Specifications & Syllabus Mapping

Examination & YearUPSC Civil Services Preliminary Examination 2012 (Q18)
Paper & Marking SchemeGS Paper I • 2 Marks (-0.66 Negative for incorrect response)
Syllabus Subject & TopicScience and Technology → Biotechnology & Genetics
Official Answer KeyOption (C) — 1, 2 and 4 only

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Frequently Asked Questions — UPSC Prelims 2012 Q18

What is the official answer for UPSC Prelims 2012 GS Paper I Question 18 (Science and Technology)?

The official UPSC answer key for this 2012 Science and Technology (Biotechnology & Genetics) question is Option (C): "1, 2 and 4 only". Correct attempts carry 2 Marks with -0.66 Negative penalty for wrong answers.

Which UPSC Prelims syllabus topic does this 2012 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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