One-Horned Rhinoceros DNA Indexing System – 10 MCQs for Competitive Exams

Greater One-Horned Rhinoceros DNA Indexing System Species in News

One-Horned Rhinoceros DNA Indexing System – Species in News

        The Greater One-Horned Rhinoceros is again in news after the Standing Committee of the National Board for Wildlife discussed a long-term conservation strategy based on the Rhino DNA Indexing System. This topic is important for UPSC, APPSC, TSPSC, SSC, Railway, Police SI/Constable and other government exams because it connects wildlife conservation, species protection, forensic technology, biodiversity and protected areas. In this post, you will learn the key facts about the Indian rhinoceros, its habitat, IUCN status, Kaziranga connection, DNA indexing and important MCQs with explanations.

One-Horned Rhinoceros – Important Facts

        The Greater One-Horned Rhinoceros, also called the Indian Rhinoceros, is scientifically known as Rhinoceros unicornis. It is one of the largest rhino species and is the largest rhino found in Asia. It is easily recognized by its single black horn, heavy body and thick grey-brown skin folds that give it an armour-like appearance. The horn is made of keratin, the same protein found in human hair and nails.

        This species mainly lives in tall grasslands, riverine floodplains, marshes and alluvial habitats of the Indian subcontinent. Its important population centres are found in north-eastern India and Nepal. Kaziranga National Park in Assam is the most famous stronghold of the species and is considered a global conservation success story. The species was once reduced to a very small population due to hunting, habitat loss and agricultural expansion, but strict protection, anti-poaching action and habitat management helped its numbers recover.

        The Rhino DNA Indexing System is important because it can create a genetic identity record of individual rhinos. DNA-based records can help wildlife authorities in population monitoring, anti-poaching investigations, forensic tracking of seized horns and scientific management of fragmented rhino populations. For exams, remember that this is an example of science-based wildlife conservation.

Point Details Exam Importance
Common Name Greater One-Horned Rhinoceros / Indian Rhinoceros Species in News
Scientific Name Rhinoceros unicornis Environment and Biodiversity
Key Feature Single black horn and armour-like skin folds Species identification
Habitat Tall grasslands, floodplains, river valleys, marshes and savannas Ecology and habitat questions
Main Range North-eastern India and Terai region of Nepal Map-based questions
Important Park Kaziranga National Park, Assam Protected area questions
IUCN Status Vulnerable Conservation status
Diet Mainly grasses, aquatic plants, fruits, shrubs and leaves Herbivore / mega-herbivore
Current News Long-term conservation strategy based on Rhino DNA Indexing System Current affairs and science-based conservation
Major Threats Poaching, habitat loss, flood risk, fragmentation and human-wildlife conflict Environment mains/prelims topic
Exam Note: The Greater One-Horned Rhinoceros is important for exams because it combines species conservation, protected areas, wildlife forensics, DNA indexing, Kaziranga National Park, IUCN status and anti-poaching measures.

Practice MCQs on One-Horned Rhinoceros

1. What is the scientific name of the Greater One-Horned Rhinoceros?
  • [A] Panthera tigris
  • [B] Rhinoceros unicornis
  • [C] Elephas maximus
  • [D] Bos gaurus
Correct Answer: [B] Rhinoceros unicornis
Notes: The Greater One-Horned Rhinoceros is scientifically known as Rhinoceros unicornis. It is also called the Indian Rhinoceros.
2. The Greater One-Horned Rhinoceros is mainly associated with which National Park in India?
  • [A] Kaziranga National Park
  • [B] Gir National Park
  • [C] Keoladeo National Park
  • [D] Eravikulam National Park
Correct Answer: [A] Kaziranga National Park
Notes: Kaziranga National Park in Assam is globally famous for the conservation of the Greater One-Horned Rhinoceros.
3. What is the IUCN Red List status of the Greater One-Horned Rhinoceros?
  • [A] Least Concern
  • [B] Vulnerable
  • [C] Critically Endangered
  • [D] Extinct in the Wild
Correct Answer: [B] Vulnerable
Notes: The Greater One-Horned Rhinoceros is listed as Vulnerable. Its population has recovered, but habitat fragmentation and poaching risks remain important concerns.
4. The horn of the One-Horned Rhinoceros is mainly made of which substance?
  • [A] Calcium carbonate
  • [B] Keratin
  • [C] Bone marrow
  • [D] Ivory
Correct Answer: [B] Keratin
Notes: Rhino horn is made of keratin, the same protein found in human hair and nails. This is important for wildlife-forensics questions.
5. Rhino DNA Indexing System is mainly useful for which purpose?
  • [A] Weather prediction
  • [B] Wildlife forensic tracking and conservation management
  • [C] Increasing horn size
  • [D] Promoting cattle breeding
Correct Answer: [B] Wildlife forensic tracking and conservation management
Notes: DNA indexing can help identify individual rhinos, support anti-poaching investigations and improve scientific monitoring of the species.
6. Which type of habitat is preferred by the Greater One-Horned Rhinoceros?
  • [A] Cold deserts
  • [B] Alpine meadows only
  • [C] Tall grasslands, floodplains and marshy areas
  • [D] Coral reefs
Correct Answer: [C] Tall grasslands, floodplains and marshy areas
Notes: The species is closely linked with alluvial grasslands, river valleys, floodplains and marshy ecosystems.
7. Which of the following best describes the diet of the Greater One-Horned Rhinoceros?
  • [A] Carnivorous
  • [B] Mainly herbivorous grazer
  • [C] Insectivorous
  • [D] Piscivorous
Correct Answer: [B] Mainly herbivorous grazer
Notes: The rhino mainly feeds on grasses, aquatic plants, fruits, leaves and small branches. It is a mega-herbivore.
8. The recent conservation discussion on the Rhino DNA Indexing System was linked to which institution?
  • [A] Standing Committee of the National Board for Wildlife
  • [B] Election Commission of India
  • [C] Finance Commission
  • [D] National Human Rights Commission
Correct Answer: [A] Standing Committee of the National Board for Wildlife
Notes: The SC-NBWL discussed the long-term conservation strategy for the Greater One-Horned Rhinoceros based on DNA indexing.
9. Which of the following is a major threat to the Greater One-Horned Rhinoceros?
  • [A] Poaching and habitat loss
  • [B] Excessive snowfall in deserts
  • [C] Deep-sea fishing
  • [D] Coral bleaching
Correct Answer: [A] Poaching and habitat loss
Notes: Major threats include poaching for horn, loss of grassland habitat, fragmentation, flood-related risks and human-wildlife conflict.
10. Why is the Greater One-Horned Rhinoceros considered a conservation success story?
  • [A] It has completely disappeared from India
  • [B] Its population recovered due to strict protection and habitat management
  • [C] It is found only in oceans
  • [D] It is a domesticated animal
Correct Answer: [B] Its population recovered due to strict protection and habitat management
Notes: The species was once close to extinction, but conservation measures in India and Nepal helped its population recover significantly.

Frequently Asked Questions

1. Why is the One-Horned Rhinoceros in news?
It is in news because a long-term conservation strategy based on the Rhino DNA Indexing System was discussed by the Standing Committee of the National Board for Wildlife.

2. What is Rhino DNA Indexing System?
It is a DNA-based system that can create genetic identity records of rhinos. It helps in scientific monitoring, forensic investigation and anti-poaching work.

3. Where is the Greater One-Horned Rhinoceros mainly found?
It is mainly found in north-eastern India and Nepal. Kaziranga National Park in Assam is one of its most important habitats.

4. What is the IUCN status of the Greater One-Horned Rhinoceros?
Its IUCN Red List status is Vulnerable.

5. Why is this topic important for exams?
It is important for environment, biodiversity, species in news, wildlife conservation, protected areas and science-based conservation questions.


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