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Science & TechnologySource: Indian Express

Scientists Genetically Engineer Wolves with White Hair, Muscular Jaws Like Extinct Dire Wolf

Wednesday, 9 April 2025
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Key Points

In a groundbreaking development, Colossal Biosciences has successfully genetically engineered wolf pups with traits reminiscent of the extinct dire wolves. This advancement in genetic engineering holds significant implications for the UPSC aspirants, particularly in the context of GS Paper 3, which covers Science and Technology. Last Updated: 2025-04-09

Key Facts About Genetically Engineered Wolves

  • Colossal Biosciences engineered wolf pups named Romulus, Remus, and Khaleesi.
  • Utilized ancient DNA from 13,000 to 72,000-year-old dire wolf fossils.
  • Identified traits such as white coats and thick fur.
  • Achieved 99.5% DNA similarity with gray wolves.
  • Employed CRISPR to edit 20 gene sites in gray wolf cells.
  • Inserted edited cells into domestic dog egg cells.
  • Implanted embryos into dog surrogates, resulting in 3 pups born after 62 days.
  • Pups are not exact replicas; millions of base pair differences exist.

Genetic Engineering and Biodiversity Conservation

The genetic engineering of wolves with traits of the extinct dire wolf highlights the potential of biotechnology in biodiversity conservation. This aligns with India's strategic goals of leveraging science and technology for sustainable development. With advancements like these, India can enhance its global standing in scientific research, contributing to international biodiversity conservation efforts.

Related Government Schemes/Policies

  • National Biotechnology Development Strategy: Aims to harness biotechnological advancements for societal benefits.
  • National Mission on Biodiversity and Human Well-being: Focuses on integrating biodiversity conservation with human welfare.

UPSC Relevance

  • GS Paper 3: Science and Technology - Developments and their applications and effects in everyday life.
  • Prelims Angle: Questions on CRISPR technology, genetic engineering, and biodiversity conservation.
  • Mains Angle: Analytical themes on the ethical implications of genetic engineering and its role in conservation.
  • Essay Paper: Topics on the intersection of technology and environmental conservation.

FAQ Section

  • What is the significance of genetically engineered wolves?
    Genetically engineered wolves like Romulus, Remus, and Khaleesi showcase the potential of using ancient DNA to revive traits of extinct species, highlighting advancements in genetic engineering.
  • Why is this development important?
    This development is crucial as it demonstrates the application of CRISPR technology in biodiversity conservation, potentially aiding in the preservation of endangered species.
  • What are the key features of these engineered wolves?
    The engineered wolves exhibit white coats, muscular jaws, and a 99.5% DNA similarity with gray wolves, with an expected maturity weight of 140 pounds.

Detailed Coverage

  • Colossal Biosciences engineered wolf pups named Romulus, Remus, and Khaleesi.
  • Used ancient DNA from 13,000 to 72,000-year-old dire wolf fossils.
  • Identified traits like white coats and thick fur.
  • Found 99.5% DNA similarity with gray wolves.
  • Used CRISPR to edit 20 gene sites in gray wolf cells.
  • Inserted edited cells into domestic dog egg cells.
  • Implanted embryos into dog surrogates.
  • Out of 8 transfers, 3 pups were born after 62 days.
  • Pups are not exact replicas; millions of base pair differences exist.
  • Classified as dire wolves based on morphological resemblance.
  • Dire wolves went extinct around 13,000 years ago.
  • They were larger than modern gray wolves, weighing up to 68 kg.
  • Hunted large prey, believed to have gone extinct due to prey depletion.
  • Current pups are 3-6 months old and weigh around 80 pounds.
  • Projected to reach 140 pounds at maturity.
  • Experts caution against expecting dire wolves to inhabit North America again.
Science & Technology

Practice Questions

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In the context of modern genetic engineering, the technique that allows for precise modifications at specific locations within an organism's genome, particularly utilized in the creation of genetically engineered wolf pups, is known as what?