Science & Technology Current Affairs MCQs

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NASA’s 2001 Mars Odyssey orbiter recently captured a breathtaking image of Arsia Mons volcano rising above early morning clouds on Mars. Arsia Mons is a giant shield volcano in the Tharsis region of Mars. It stands over 18 kilometers tall and spans more than 300 kilometers wide at its base. It is much larger than Earth’s tallest volcano, Mauna Loa, which is 9 kilometers high. Arsia Mons is the southernmost volcano in the Tharsis Montes group, which includes three major volcanoes.

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Researchers from the Indian Institute of Science Education and Research (IISER), Bhopal, found that a protein called BBX32 helps plants grow properly from darkness into light. BBX32 is a B-box (BBX) protein that plays a key role in plant growth and development. It helps control when a seedling starts growing above soil, improving chances of healthy growth. This discovery helps understand how seedlings grow and could help improve crop establishment in agriculture.

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Recently, India’s first agentic Artificial Intelligence (AI) named Kruti was launched by the startup Krutrim. It is a next-generation Generative AI (GenAI) tool that goes beyond just providing information. Kruti can act independently to manage complex tasks, make decisions, and solve problems for users and organizations. It uses advanced reasoning and step-by-step planning to handle multi-layered challenges without constant human input. It processes large amounts of data from various sources to create strategies and complete tasks on its own.

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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, the National Institute of Immunohaematology developed an affordable and simple point-of-care test kit in India for early diagnosis of genetic bleeding disorders like Haemophilia A and Von Willebrand Disease. Haemophilia A is a hereditary bleeding disorder where blood does not clot properly due to low levels of Factor VIII, a key clotting protein.
Normally, when bleeding occurs, a process called the coagulation cascade activates clotting factors to stop the bleeding. If one or more of these clotting factors are missing or not working properly, it leads to excessive bleeding.

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Recently, scientists at Bose Institute, Kolkata, developed a modified CRISPR (Clustered Regularly Interspaced Short Palindromic Repeats) tool to help plants fight heat stress and bacterial infections, boosting smart and sustainable farming. Unlike traditional CRISPR which cuts DNA, the team used a modified version called dCas9 (dead Cas9), which does not cut DNA but works like a gene switch. This switch stays off until the plant is stressed, such as by high temperatures. The scientists used a part of a natural tomato protein called NACMTF3, specifically its TM (Transmembrane) domain, to control the switch. Under heat stress, the TM domain releases dCas9, allowing it to enter the nucleus and turn on defense genes. This method allows plants to respond only when needed, reducing energy use and improving resilience.

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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 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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The Indian Institute of Science (IISc), Bengaluru, recently launched the BHARAT study under its Longevity India Program. BHARAT stands for Biomarkers of Healthy Aging, Resilience, Adversity, and Transitions. The study aims to map physiological, molecular, and environmental indicators that drive ageing in Indians. It will build India’s first comprehensive ageing database. It includes multiparametric analysis, advanced clinical assessment, and lifestyle factors. It will identify biomarkers for healthy ageing and set the Bharat Baseline for normal health values in India.

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Recently, Indian Railways signed a Memorandum of Understanding (MoU) with the Dedicated Freight Corridor Corporation of India Limited (DFCCIL) to install Machine Vision Based Inspection System (MVIS). Machine Vision Based Inspection System (MVIS) uses Artificial Intelligence (AI) to inspect trains in real time for better maintenance and safety. It is a wayside system that captures high-resolution images of moving train under-gear. It detects hanging, loose, or missing parts and sends real-time alerts for quick action.