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MARFAN SYNDROME: GENETIC CONNECTIVE-TISSUE DISORDER AND AORTIC RISK Why in the News? Researchers have recently published the first molecular characterization of Marfan syndrome in domestic cats, providing a new animal model for understanding the genetic and molecular mechanisms of this inherited connective-tissue disorder. The development may support future research into disease mechanisms, diagnosis and therapeutic …
Read MoreThis image illustrates the Central Dogma of Molecular Biology, showing the stepwise process from DNA to mRNA to protein synthesis and cellular function. It belongs to UPSC GS Paper 3 (Science & Technology), in the subject Biology/Genetics, and is vital for understanding gene expression and biotechnology topics.
Read MoreAI-Powered Satellites Challenge Existing International Space Law Framework Why in the News? Artificial intelligence in space is transforming satellites into autonomous machines capable of making independent decisions in orbit. This technological leap exposes critical legal, ethical, and geopolitical challenges, especially regarding liability issues in AI-powered satellites, security, and governance, in the current international space law …
Read MoreScientists Solve Mendel’s 160-Year-Old Genetic Puzzle Why in the News? A new study published in Nature (2025) has finally identified the genetic basis of all seven traits studied by Gregor Mendel in pea plants, solving a long-standing mystery in the field of pea genetics and opening avenues for agricultural innovations through genomic mapping in agriculture. …
Read MoreSyllabus: GS-3: Biotechnology , Scientific Innovations & Discoveries Focus: In 2024, two research teams from Italy and the USA reported exceptional cases of females possessing the SRY gene, typically responsible for male development. These rare findings challenge traditional concepts of sex determination and highlight the genetic complexities behind male and female biological development. Defining the …
Read MoreWhy in the news? A new study reveals that the Nicobarese ancestors migrated to the Nicobar Islands about 5,000 years ago, correcting the earlier belief of migration over 11,000 years ago, based on advanced genetic analysis techniques. Key Findings of the Study: Scientists initially believed the Austroasiatic ancestors of the Nicobarese arrived over 11,000 years …
Read MoreWhy in the News? A research team has identified specific genetic mechanisms in a new species of tardigrade, Hypsibius henanensis, that allow it to survive high radiation levels. The discovery could lead to innovations in astronaut protection, nuclear cleanup, and cancer treatment advancements. About Genetic Mechanisms Behind Tardigrade Radiation Resistance: Scientists recently identified genetic traits …
Read MoreWhy in the news? The Nobel Prize in Physiology or Medicine 2024 went toS. scientists Victor Ambros and Gary Ruvkun for discovering microRNA, a key molecule in gene regulation. Their groundbreaking work has revolutionised understanding of how cells function and opened new avenues for medical research in cancer and other diseases. Nobel Prize Winners and …
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