UPSC Prelims Facts – 5 June 2025

Wildlife Institute of India and National Tiger Conservation Authority did India’s first survey of ungulates (hoofed animals).

  • Ungulates are hoofed mammals classified into two groups—Artiodactyla (even-toed) and Perissodactyla (odd-toed).
  • Examples: Artiodactyls include cattle, deer, pigs, giraffes, while Perissodactyls include horses, rhinos, and tapirs.
  • Evolutionary Significance: Ungulates evolved specialized hooves for efficient movement and grazing.
  • Ecological Role: Many ungulates are herbivores, playing a crucial role in maintaining ecosystems by controlling vegetation.

Researchers shed light on the molecular innovations in flowering plants that help explain abominable mystery through newfound gene, called SHUKR (or sperm).

  • Discovery: Identified by CSIR-CCMB, Hyderabad, the SHUKR gene regulates pollen development in flowering plants.
  • Function: It controls F-box genes, which remove old proteins and help pollen grow.
  • Evolutionary Importance: First appeared 125 million years ago, aiding rapid diversification of flowering plants.
  • Climate Adaptation: Helps plants adjust to harsh conditions like heat and drought, crucial for climate-resilient crops.

Recently, Ukraine claimed responsibility for the underwater explosion that damaged the Kerch bridge.

  • Geographical Location: Connects the Black Sea and Sea of Azov, separating Crimea from Russia’s Krasnodar Krai.
  • Strategic Importance: Houses the Crimean Bridge, a key military and economic route for Russia.
  • Historical Context: Known as Cimmerian Bosporus in ancient times, it was a major trade route.
  • Recent Conflicts: Ukraine has targeted the Kerch Bridge multiple times due to its role in Russian military logistics.

J&K Lieutenant Governor dismissed three government employees for alleged terror links using powers under Article 311(2) (c).

  • Purpose: Protects civil servants from arbitrary dismissal, removal, or reduction in rank.
  • Safeguards: Ensures due process, requiring an inquiry before disciplinary action.
  • Exceptions: Inquiry can be waived in cases of criminal conviction, impracticality, or state security concerns.
  • Judicial Review: The dismissal authority’s decision on inquiry feasibility is final.

Researchers at Indian Institute of Science (IISc) developed an artificial metal-based nanozyme (vanadium pentoxide (V2 O5 ) to clamp down on abnormal blood clotting caused by conditions like pulmonary thromboembolism (PTE).

  • Artificial enzymes made from nanomaterials, mimicking natural enzyme functions.
  • Biomedical Applications: Used in biosensing, targeted therapy, and diagnostics, especially in detecting diseases.
  • Recent Innovation: IISc developed a vanadium-based nanozyme to prevent blood clotting without side effects.
  • Advantages: More stable, cost-effective, and customizable than natural enzymes, with potential for clinical applications

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