Topic: Conservation, environmental pollution and degradation.
Q6. What is environmental DNA (eDNA)? Highlight its applications in biodiversity assessment. (10 M)
Difficulty Level: Medium
Reference: DTE
Why the question
Growing relevance of biotechnology in environmental monitoring and need for advanced tools to address biodiversity loss and ecosystem degradation.Key Demand of the question
The question requires explaining the concept and scientific basis of environmental DNA and then highlighting its applications specifically in biodiversity assessment. Both conceptual clarity and applied understanding are required.Structure of the Answer:
Introduction
Briefly introduce emerging molecular tools in ecology and position eDNA as a modern, non-invasive monitoring technique.
Body
- Concept of eDNA: Explain what eDNA is and how genetic material is obtained from environmental samples.
- Working/Methodology: Mention basic idea of collection, extraction and identification through genetic markers.
- Application in biodiversity assessment: Highlight its role in species detection, ecosystem monitoring, conservation and policy support.
Conclusion
Conclude with its transformative potential in enabling real-time, data-driven biodiversity conservation.
