Introducing QUED – Questions from Editorials (UPSC Editorials Quiz) , an innovative initiative from InsightsIAS. Considering the significant number of questions in previous UPSC Prelims from editorials, practicing MCQs from this perspective can provide an extra edge. While we cover important editorials separately in our Editorial Section and SECURE Initiative, adding QUED (UPSC Editorials Quiz) to your daily MCQ practice alongside Static Quiz, Current Affairs Quiz, and InstaDART can be crucial for better performance. We recommend utilizing this initiative to enhance your preparation, with 5 MCQs posted daily at 11 am from Monday to Saturday on our website under the QUIZ menu.
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Question 1 of 5
1. Question
What is the primary function of microRNAs (miRNAs) in cellular processes?
Correct
Solution: B
About MicroRNAs (miRNAs):
- Definition: miRNAs are small, non-coding RNA molecules that regulate gene expression post-transcriptionally.
- Functions:
- Bind to complementary mRNA sequences to suppress protein production.
- Ensure precise gene expression during development and physiological processes.
- Role in Gene Suppression: miRNAs reduce protein synthesis by promoting mRNA degradation or hindering translation.
- Applications: Potential in diagnostics and therapeutics for cancer, genetic disorders, and more.
Incorrect
Solution: B
About MicroRNAs (miRNAs):
- Definition: miRNAs are small, non-coding RNA molecules that regulate gene expression post-transcriptionally.
- Functions:
- Bind to complementary mRNA sequences to suppress protein production.
- Ensure precise gene expression during development and physiological processes.
- Role in Gene Suppression: miRNAs reduce protein synthesis by promoting mRNA degradation or hindering translation.
- Applications: Potential in diagnostics and therapeutics for cancer, genetic disorders, and more.
-
Question 2 of 5
2. Question
What makes sonobuoys essential in anti-submarine warfare (ASW)?
Correct
Solution: D
Sonobuoys are essential in ASW because they provide real-time acoustic signal detection using hydrophones and transmit data to surface or aerial platforms for immediate analysis.
About Sonobuoys:
- What they are:
- Sonobuoys are expendable sonar buoys used for anti-submarine warfare and underwater acoustic research.
- Typically, small (13 cm in diameter and 91 cm long), they combine above-surface transmitters and underwater hydrophone sensors.
- Working Principles:
- Deployment: Dropped from aircraft or ships, they activate upon water impact.
- Surface Float: Inflatable floats with radio transmitters remain on the water’s surface for communication.
- Sensors: Hydrophones descend to a selected depth, capturing underwater acoustic signals.
- Communication: Transmit acoustic data via Very High Frequency (VHF) and Ultra High Frequency (UHF) radios to operators on aircraft or ships.
- Features:
- Acoustic Versatility: Effective in tracking submarines by detecting underwater sounds.
- Interoperability: Compatible with aircraft like P-8, MH-60R, and MQ-9B across Indian and U.S. Navies.
- Customizability: Adjustable depth and sensitivity based on environmental conditions.
- Real-time Data Relay: Ensures seamless communication with operators for immediate analysis.
Incorrect
Solution: D
Sonobuoys are essential in ASW because they provide real-time acoustic signal detection using hydrophones and transmit data to surface or aerial platforms for immediate analysis.
About Sonobuoys:
- What they are:
- Sonobuoys are expendable sonar buoys used for anti-submarine warfare and underwater acoustic research.
- Typically, small (13 cm in diameter and 91 cm long), they combine above-surface transmitters and underwater hydrophone sensors.
- Working Principles:
- Deployment: Dropped from aircraft or ships, they activate upon water impact.
- Surface Float: Inflatable floats with radio transmitters remain on the water’s surface for communication.
- Sensors: Hydrophones descend to a selected depth, capturing underwater acoustic signals.
- Communication: Transmit acoustic data via Very High Frequency (VHF) and Ultra High Frequency (UHF) radios to operators on aircraft or ships.
- Features:
- Acoustic Versatility: Effective in tracking submarines by detecting underwater sounds.
- Interoperability: Compatible with aircraft like P-8, MH-60R, and MQ-9B across Indian and U.S. Navies.
- Customizability: Adjustable depth and sensitivity based on environmental conditions.
- Real-time Data Relay: Ensures seamless communication with operators for immediate analysis.
-
Question 3 of 5
3. Question
What is the primary cause of tidal tail formation in galaxies?
Correct
Solution: C
Tidal tails are formed due to gravitational interactions between galaxies during close encounters or mergers, which strip stars and interstellar gas from their outer regions.
About Tidal Tail:
- What it is: A tidal tail is a long, thin stream of stars and interstellar gas formed due to gravitational interactions between galaxies.
- How it forms:
- Gravitational forces during close encounters or mergers between galaxies strip material (stars, gas, and dust) from their outer regions, creating two tidal tails—one leading and one trailing.
- Significance:
- Galaxy Formation: Offers insights into how ultra-diffuse galaxies with low surface brightness form.
- Galaxy Evolution: Provides evidence of interactions shaping galaxies, influencing their structure and star formation.
- Cosmic History: Acts as a marker of past galactic mergers, helping trace the evolutionary history of galaxies.
Incorrect
Solution: C
Tidal tails are formed due to gravitational interactions between galaxies during close encounters or mergers, which strip stars and interstellar gas from their outer regions.
About Tidal Tail:
- What it is: A tidal tail is a long, thin stream of stars and interstellar gas formed due to gravitational interactions between galaxies.
- How it forms:
- Gravitational forces during close encounters or mergers between galaxies strip material (stars, gas, and dust) from their outer regions, creating two tidal tails—one leading and one trailing.
- Significance:
- Galaxy Formation: Offers insights into how ultra-diffuse galaxies with low surface brightness form.
- Galaxy Evolution: Provides evidence of interactions shaping galaxies, influencing their structure and star formation.
- Cosmic History: Acts as a marker of past galactic mergers, helping trace the evolutionary history of galaxies.
-
Question 4 of 5
4. Question
Consider the following statements regarding Sonobuoys
Statement-I: Sonobuoys play a critical role in enhancing undersea domain awareness (UDA).
Statement-II: They are designed to detect, track, and classify underwater objects like submarines and torpedoes.Which of the following are correct?
Correct
Solution: A
Both statements are correct, and Statement-II provides the correct explanation for Statement-I. Sonobuoys enhance undersea domain awareness (UDA) by detecting, tracking, and classifying underwater objects.
Incorrect
Solution: A
Both statements are correct, and Statement-II provides the correct explanation for Statement-I. Sonobuoys enhance undersea domain awareness (UDA) by detecting, tracking, and classifying underwater objects.
-
Question 5 of 5
5. Question
Which of the following are benefits of the Miyawaki Technique?
- It supports biodiversity by creating habitats for various species.
- It enhances groundwater recharge in areas with depleted water tables.
- It significantly lowers the carbon footprint of the soil preparation process.
How many of the above statements is/are correct?
Correct
Solution: B
Statement 1 is correct: By planting native species, the technique creates habitats that attract birds, insects, and other fauna, thereby supporting biodiversity.
Statement 2 is correct: Dense planting improves soil health and promotes water retention, aiding groundwater recharge.
Statement 3 is incorrect: While the technique is environmentally beneficial, soil preparation may involve fertilizers and treatments that do not necessarily lower the carbon footprint.
About Miyawaki Technique:
- What it is: A method developed by Japanese botanist Akira Miyawaki in the 1970s to create dense, fast-growing forests by mimicking natural ecosystems.
- Often referred to as the ‘pot plantation method’, it involves planting trees and shrubs close to one another to accelerate their growth.
- Features:
- Dense Planting: Plants are placed close together using native species.
- Accelerated Growth: Trees grow 10 times faster than in traditional forests.
- Soil Restoration: Enhances soil fertility and promotes natural regeneration.
- Biodiversity Boost: Supports a wide variety of flora and fauna.
- Significance:
- Urban Reforestation: Converts barren and polluted lands into green spaces.
- Environmental Benefits: Reduces air and water pollution, absorbs more carbon, and lowers temperatures by 4-7°C.
- Sustainability: Prevents soil erosion and promotes ecological balance, contributing to long-term environmental restoration.
Incorrect
Solution: B
Statement 1 is correct: By planting native species, the technique creates habitats that attract birds, insects, and other fauna, thereby supporting biodiversity.
Statement 2 is correct: Dense planting improves soil health and promotes water retention, aiding groundwater recharge.
Statement 3 is incorrect: While the technique is environmentally beneficial, soil preparation may involve fertilizers and treatments that do not necessarily lower the carbon footprint.
About Miyawaki Technique:
- What it is: A method developed by Japanese botanist Akira Miyawaki in the 1970s to create dense, fast-growing forests by mimicking natural ecosystems.
- Often referred to as the ‘pot plantation method’, it involves planting trees and shrubs close to one another to accelerate their growth.
- Features:
- Dense Planting: Plants are placed close together using native species.
- Accelerated Growth: Trees grow 10 times faster than in traditional forests.
- Soil Restoration: Enhances soil fertility and promotes natural regeneration.
- Biodiversity Boost: Supports a wide variety of flora and fauna.
- Significance:
- Urban Reforestation: Converts barren and polluted lands into green spaces.
- Environmental Benefits: Reduces air and water pollution, absorbs more carbon, and lowers temperatures by 4-7°C.
- Sustainability: Prevents soil erosion and promotes ecological balance, contributing to long-term environmental restoration.
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