UPSC CSE Prelims
Question 61
With reference to agriculture in India, how can the technique of 'genome sequencing', often seen in the news, be used in the immediate future ?
- Genome sequencing can be used to identify genetic markers for disease resistance and drought tolerance in various crop plants.
- This technique helps in reducing the time required to develop new varieties of crop plants.
- It can be used to decipher the host-pathogen relationships in crops.
Select the correct answer using the code given below :
View correct answer and explanation
Correct answer: D
Correct Option: D
Explanation: Crop genome sequencing reveals DNA variation and marker–trait associations, which can accelerate breeding for stress resistance and illuminate interactions with disease-causing organisms.
Statement/Pair-wise Analysis:
Statement/Item 1: Correct - Genome data can identify DNA markers linked to drought tolerance and disease resistance.
Statement/Item 2: Correct - Marker-assisted/genomic selection can reduce time to develop improved crop varieties.
Statement/Item 3: Correct - Comparing host and pathogen genomic information can reveal infection mechanisms and resistance.
Option-wise Analysis:
A: Incorrect - omits correct statement/items 2, 3.
B: Incorrect - omits correct statement/item 1.
C: Incorrect - omits correct statement/item 2.
D: Correct - includes all and only the true statements/items.