Science & Technology Current Affairs MCQs

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A recent genomic study revealed the spread of Rice Yellow Mottle Virus or RYMV across African rice ecosystems, posing a serious threat to rice production. Rice Yellow Mottle Virus is a plant virus that affects rice and some related grasses. It first appeared in the mid-1800s in the Eastern Arc Mountains, now in Tanzania, a region rich in biodiversity. It is mainly found in Africa and is present in most rice-growing countries on the continent.

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Recently, five people died due to leptospirosis in Ernakulam district of Kerala within the past three weeks. Leptospirosis is a potentially fatal zoonotic disease caused by the bacterium Leptospira interrogans. The bacteria are commonly found in the urine of animals like rats, cattle, pigs, and dogs. Humans can get infected when the bacteria enter the body through small cracks or wounds on the skin, especially the soles of the feet. The disease is more common in warm and humid countries and can spread in both rural and urban areas.

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Recently, the Ministry of Power announced a task force to develop the India Energy Stack, a new digital platform for the energy sector. The India Energy Stack is a Digital Public Infrastructure to create a secure, standard, and open system for managing and innovating across the electricity sector. It will give unique identification numbers for consumers, assets, and transactions. It will allow real-time, consent-based data sharing and use open Application Programming Interfaces for smooth integration.

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Recently, Japan launched the Global Observing Satellite for Greenhouse gases and Water cycle (GOSAT-GW) from Tanegashima Space Centre. GOSAT-GW is an Earth observation satellite developed by the Japanese Aerospace Exploration Agency (JAXA). It was launched using the H-2A rocket. Its objectives are to monitor global-mean concentrations of Greenhouse Gases (GHGs), verify national anthropogenic GHG emissions inventories, and detect GHG emissions from large sources like megacities and power plants.

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Recently, the World Health Organization (WHO) launched the “3 by 35” Initiative to tackle non-communicable diseases (NCDs). It urges countries to raise taxes on tobacco, alcohol, and sugary drinks to achieve at least a 50% real price increase by 2035. NCDs like heart disease, cancer, and diabetes cause over 75% of global deaths. Higher taxes could prevent 50 million premature deaths over 50 years and generate USD 1 trillion in public revenue in the next decade. Between 2012 and 2022, around 140 countries already raised tobacco taxes, showing large-scale change is achievable.

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Recently, the Vera C. Rubin Observatory (VRO) in Chile released its first images, capturing 10 million galaxies, 2,000+ new asteroids, and stars with changing brightness. It is located on Cerro Pachon Mountain, Northern Chile, at an altitude of 8,684 feet. VRO was formerly called the Large Synoptic Survey Telescope (LSST) and renamed in 2019 to honour Vera C. Rubin, who discovered dark matter evidence. It is funded by the U.S. National Science Foundation (NSF) and Department of Energy (DOE).

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Researchers at the S. N. Bose National Centre for Basic Sciences (SNBNCBS) have developed a sustainable method to produce hydrogen peroxide (H₂O₂) using sunlight and water. The process uses a special material called Mo-DHTA COF, short for dimolybdenum paddlewheel-embedded covalent organic framework. It acts like a solar-powered molecular factory, absorbing sunlight and converting water and oxygen into hydrogen peroxide. Hydrogen peroxide is an eco-friendly chemical used in sterilization, wound cleaning, wastewater treatment, and fuel cells.

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Pune district in Maharashtra has been declared an affected area due to rising Lumpy Skin Disease (LSD) cases in cattle. As of now, 906 cattle are infected, with 591 recovered and 15 deaths reported. Pune has over 8.46 lakh cattle as per the 20th Livestock Census and is a major milk producer. Lumpy Skin Disease (LSD) is a highly infectious viral disease affecting all breeds of cattle and water buffalo. It is caused by Lumpy Skin Disease Virus (LSDV), belonging to the genus Capripoxvirus (CaPV) under the family Poxviridae.

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Recently, ISRO is preparing to launch three navigation satellites for the Indian Regional Navigation Satellite System (IRNSS) by next year. Indian Regional Navigation Satellite System (IRNSS), also called Navigation with Indian Constellation (NavIC), is developed by Indian Space Research Organisation (ISRO). It is an independent and fully indigenous satellite navigation system, under India’s full control. Indian Regional Navigation Satellite System (IRNSS) was designed as a 7-satellite constellation to cover India and 1,500 km around it.

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Recently, the first phase of the Darwin Tree of Life (DToL) project is nearing completion. The project aims to sequence the genomes of 70,000 eukaryotic species in Britain and Ireland. It is part of the global Earth BioGenome Project which targets sequencing all complex life on Earth. The project collects species samples and uses advanced DNA sequencing technologies to create high-quality genomes. It applies modern computational tools to study how DNA sequences relate to biodiversity.