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UPSC 2017: With reference to agriculture in India, how can the technique of 'genome sequencing', often seen in the news, be used in the immediate future? 1. Genome sequencing can be used to identify genetic markers for disease resistance and drought tolerance in various crop plants. 2. This technique helps in reducing the time required to develop new varieties of crop plants. 3. It can be used to decipher the host-pathogen relationships in crops. Select the correct answer using the code given below:
(a)1 only
(b)2 and 3 only
(c)1 and 3 only
(d)1, 2 and 3
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Not attemptedCorrect Answer: (d) 1, 2 and 3
Genome sequencing allows scientists to locate DNA markers linked to agronomic traits such as disease resistance and drought tolerance (statement 1). Once such markers are known, breeders can screen seedlings at the DNA level and skip long field-evaluation cycles, thereby shortening the time needed to release new varieties (statement 2). The complete genome also reveals pathogen-specific genes and plant defence genes, helping researchers unravel host–pathogen interactions (statement 3). Hence all three statements are correct. ([insightsonindia.com](https://www.insightsonindia.com/2017/06/19/answer-key-upsc-civil-services-prelims-exam-2017-general-studies-paper-1/?utm_source=openai))
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What is the correct answer to this UPSC 2017 Science & Technology question?▼
The correct answer is option (d): 1, 2 and 3. Watch the detailed video explanation in our Sherlocking Prelims course on UnlockIAS.
Which year was this Biotechnology & Genetics question asked in UPSC Prelims?▼
This question was asked in UPSC CSE Prelims 2017, GS Paper 1, as Question 45. It falls under Science & Technology > Biotechnology & Genetics.
What is the difficulty level of this UPSC question?▼
This question is rated "moderate". It requires sound conceptual understanding of the topic.
How many UPSC Prelims questions have been asked from Biotechnology & Genetics?▼
UPSC has asked 54 questions from Biotechnology & Genetics (under Science & Technology) across multiple years. Visit the topic page to see the full list and year-wise trends.