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The correct answer is Solar cell (photovoltaic) - converts sunlight directly into electricity through semiconductors.

Key Points

• Photovoltaic cells (solar cells) are devices that convert sunlight directly into electricity using semiconductors such as silicon.
• When sunlight hits the semiconductor material, electrons are knocked loose, creating an electric current that can be harnessed.
• Photovoltaic systems are widely used in renewable energy applications, including solar panels installed on rooftops, solar farms, and portable solar chargers.
• Solar cells are highly efficient and environmentally friendly, as they do not emit greenhouse gases during electricity generation.
• They play a critical role in reducing dependence on fossil fuels and promoting sustainable energy sources.

Additional Information

• Passive solar:
• Passive solar systems are designed to use building features (such as windows, walls, and roofs) to capture, store, and distribute sunlight as heat, without the use of mechanical systems.
• They rely on the natural movement of heat and do not involve pumps or motors to move heated fluids.
• Examples include solar water heaters, greenhouses, and buildings designed for thermal insulation and heat retention.
• Solar thermal tower:
• A solar thermal tower is a type of concentrated solar power system that uses mirrors to focus sunlight onto a central receiver to generate heat, which is then used to produce electricity.
• It does not use optical fibers for daylight; the receiver converts solar energy into thermal energy for steam generation and turbine operation.
• This technology is primarily utilized in large-scale power plants to produce renewable energy efficiently.
• Active solar:
• Active solar systems involve mechanical or electrical devices (such as fans, pumps, or motors) to collect, store, and distribute solar energy.
• Examples include solar water heaters with pumps, photovoltaic panels with inverters, and solar cooling systems.
• They are distinct from passive systems, which rely solely on building design and do not use mechanical equipment.

The correct answer is Sarangi.

Key Points

• The Sarangi is a traditional Indian string instrument known for its soulful and rich sound.
• It is a fretless instrument played using a bow, and the strings are stopped by the cuticles or sides of the fingers.
• The Sarangi typically has three main gut strings and around 30–40 sympathetic strings that resonate to create a deep, melodious tone.
• It is widely used in Indian classical music, especially to accompany vocal performances, due to its ability to mimic the nuances of the human voice.
• The Sarangi has a distinct place in Indian music and is considered one of the most challenging instruments to master due to its fretless structure and complex technique.

Additional Information

• Tanpura
• The Tanpura is a long-necked string instrument used in Indian classical music to provide a continuous harmonic drone.
• It typically has 4–6 strings and is plucked with the fingers, but it is not played with a bow.
• Unlike the Sarangi, the Tanpura is a fretless instrument but serves a rhythmic and harmonic role rather than a melodic one.
• Sitar
• The Sitar is a plucked string instrument with frets and a distinctive resonating sound, commonly associated with Hindustani classical music.
• It has 6–7 main strings and 11–13 sympathetic strings that enhance its tonal richness.
• The Sitar is played using a pick called a mizrab, and not with a bow.
• Tambura
• The Tambura, similar to the Tanpura, is a drone instrument with no frets and is used to provide a sustained harmonic background in Indian classical music.
• It has 4–5 strings and is typically plucked with the fingers instead of being played with a bow.
• It is often confused with the Tanpura but is known for its slightly larger body and deeper sound.

The correct answer is An X chromosome.

Key Points

• All humans inherit one chromosome from each parent, forming a pair for each chromosome. Mothers contribute an X chromosome to their children irrespective of their gender.
• The X chromosome is one of the two sex chromosomes in humans, and its inheritance determines certain genetic traits and disorders.
• Females inherit one X chromosome from their mother and one X chromosome from their father, making them XX.
• Males inherit one X chromosome from their mother and one Y chromosome from their father, making them XY.
• The X chromosome carries genes essential for various biological processes, including immunity, reproduction, and development.

Additional Information

• Only Chromosome 21:
• Chromosome 21 is one of the 23 pairs of chromosomes humans possess. It plays a role in genetic disorders like Down syndrome, caused by an extra copy of this chromosome (trisomy 21).
• Chromosome 21 is not specifically inherited from the mother or father. Rather, one copy is inherited from each parent.
• This chromosome contains approximately 200-400 genes, many of which are involved in brain function and development.
• A Y chromosome:
• The Y chromosome is one of the sex chromosomes in humans and is responsible for male sex determination.
• It is exclusively inherited from the father and only by male offspring (XY), while females do not inherit a Y chromosome (XX).
• The Y chromosome contains genes like SRY (Sex-determining Region Y) that trigger the development of male characteristics.
• Only Chromosome 13:
• Chromosome 13 is one of the autosomal chromosomes in humans, meaning it is not a sex chromosome.
• It contains genes related to cancer suppression (e.g., RB1 gene) and other important biological functions.
• Like Chromosome 21, one copy of Chromosome 13 is inherited from each parent, not specifically from the mother.
• Trisomy 13 (Patau syndrome) is a genetic disorder caused by an extra copy of Chromosome 13.
• Main Theme:
• Sex chromosomes (X and Y) play a crucial role in determining the gender and inheritance of genetic traits.
• All individuals inherit one X chromosome from their mother, regardless of their gender, which makes the X chromosome a vital carrier of genetic information.
• Understanding how chromosomes are inherited helps in comprehending genetic disorders and human development.

The correct answer is Coal.

Key Points

• The Oilfields (Regulation and Development) Amendment Bill, 2024, primarily regulates the exploration and production of hydrocarbons such as petroleum, natural gas, and crude oil.
• The term "hydrocarbons" in this context refers to organic compounds made of carbon and hydrogen, which include petroleum, natural gas, and crude oil but explicitly excludes coal.
• Coal is classified as a fossil fuel but is not considered a hydrocarbon under this bill due to its distinct composition and regulatory framework.
• Coal falls under the purview of separate legislation, such as the Coal Mines (Nationalisation) Act, 1973, and is regulated independently by the Ministry of Coal in India.
• The exclusion of coal from the bill emphasizes its distinct role in energy production and mining regulations compared to hydrocarbons like petroleum and natural gas.

Additional Information

• Petroleum:
• Petroleum is a liquid hydrocarbon extracted from beneath the earth's surface through drilling operations.
• It is refined to produce fuels like gasoline, diesel, and kerosene and is a crucial energy source globally.
• Petroleum exploration and production in India are regulated under the Hydrocarbon Exploration and Licensing Policy (HELP).
• Natural Gas:
• Natural gas is a hydrocarbon composed primarily of methane and is extracted from underground reserves.
• It is used as a cleaner alternative to coal and petroleum for power generation, industrial processes, and domestic cooking.
• India has significant reserves of natural gas, which are regulated under policies like HELP and the Oilfields (Regulation and Development) Amendment Bill.
• Crude Oil:
• Crude oil is an unrefined liquid hydrocarbon extracted from oil wells and is processed in refineries to produce petroleum products.
• It is one of the most traded commodities globally and a cornerstone of the energy sector.
• The regulatory framework for crude oil exploration and production in India aligns with international standards under HELP and other relevant laws.

The correct answer is Amino acids and reducing sugars.

Key Points

• The Maillard reaction occurs between amino acids and reducing sugars when exposed to heat, leading to browning and the development of complex flavors in cooked foods.
• Reducing sugars such as glucose and fructose play a crucial role in this reaction as they contain a free aldehyde or ketone group, allowing them to react with amino acids.
• Amino acids, the building blocks of proteins, interact with reducing sugars during this reaction to form a variety of compounds responsible for the aroma and taste of cooked foods.
• The Maillard reaction is responsible for the characteristic flavors of foods such as grilled meats, baked goods, roasted coffee, and fried potatoes.
• This reaction typically occurs at temperatures above 140°C (284°F) and is influenced by factors such as pH, temperature, and the presence of water.

Additional Information

• Fats and oils:
• Fats and oils primarily consist of triglycerides, which are formed from glycerol and fatty acids. They do not directly participate in the Maillard reaction.
• While fats and oils contribute to the texture and richness of food, their main role in cooking is to act as a medium for heat transfer and enhance flavor through other chemical reactions like lipid oxidation.
• Fats can also aid in browning through processes like caramelization, but they are not a key component of the Maillard reaction.
• Water and salt:
• Water is essential for maintaining moisture levels during cooking, but it does not play a significant role in the Maillard reaction.
• Salt enhances flavor by interacting with taste receptors, but it does not chemically contribute to the Maillard reaction.
• However, salt can influence the texture and water retention of foods, indirectly affecting how the Maillard reaction occurs in certain cases.
• Starch and fiber:
• Starch and fiber are complex carbohydrates found in foods like grains and vegetables.
• These components do not directly participate in the Maillard reaction, as starches are polysaccharides and lack the free aldehyde or ketone groups found in reducing sugars.
• Starch contributes to food texture and structure, while fiber aids in digestion, but they are not involved in the chemical browning and flavoring processes of the Maillard reaction.

The correct answer is Maharashtra.

Key Points

• Maharashtra unveiled a 150-day action plan in 2025 aimed at enhancing governance and economic growth.
• The plan focuses on e-governance, enabling digital integration and connecting tehsils for improved public service delivery.
• A significant aspect of the action plan is the streamlining of processes for faster business approvals and economic activities.
• The initiative aligns with Maharashtra's vision of becoming a leading state in digital transformation and ease of doing business.
• It highlights the importance of leveraging technology to improve administrative efficiency and foster economic growth.

Additional Information

• Karnataka
• Karnataka is a leading state in India for innovation and technology, housing a significant number of IT and biotech firms, particularly in Bengaluru, known as the "Silicon Valley of India."
• The state has implemented several e-governance initiatives, such as Bhoomi (for land records) and Sakala (guaranteed delivery of citizen services).
• It is known for its initiatives aimed at fostering ease of doing business and attracting investments in sectors like IT, aerospace, and manufacturing.
• Tamil Nadu
• Tamil Nadu is one of India's most industrialized states, with a strong emphasis on automobile manufacturing, textiles, and electronics.
• The state has launched digital governance platforms like e-Sevai, which provides online access to various government services.
• Tamil Nadu's Vision 2023 focuses on infrastructure development, inclusive growth, and social progress.
• Gujarat
• Gujarat is known for its business-friendly policies and has been a leader in ease of doing business rankings in India.
• The state has implemented several e-governance initiatives, such as iORA (Integrated Online Revenue Applications) for land-related services.
• It is a hub for industries like petrochemicals, textiles, and pharmaceuticals, along with a strong emphasis on renewable energy initiatives.

The correct answer is Gwalior.

Key Points

• Ustad Haddu Khan was a renowned Hindustani classical vocalist associated with the Gwalior Gharana, one of the oldest and most prominent gharanas in Indian classical music.
• The Gwalior Gharana is known for its emphasis on purity of ragas and is considered the foundation of Khayal singing in Hindustani music.
• Haddu Khan, along with his brother Hassu Khan, played a crucial role in shaping and preserving the traditions of the Gwalior Gharana during the 19^th century.
• The Gwalior Gharana is characterized by its straightforward and unembellished style, focusing on clarity of notes, rhythmic precision, and the systematic development of ragas.
• Ustad Haddu Khan's contributions to Indian classical music have been instrumental in making the Gwalior Gharana a celebrated tradition in the world of Hindustani music.

Additional Information

• Indore Gharana
• The Indore Gharana is known for its unique style of Khayal singing, emphasizing melody and emotional expression.
• It was popularized by Ustad Amir Khan, a legendary Hindustani classical vocalist.
• This gharana is notable for its use of slow tempo (vilambit) compositions and intricate ornamentation like meend and murki.
• Bhendibazaar Gharana
• The Bhendibazaar Gharana originated in Mumbai and is known for its emphasis on voice culture and intricate taans.
• It was established by Ustad Chhajju Khan, Ustad Nazir Khan, and Ustad Khadim Hussain Khan.
• This gharana is also recognized for its focus on proper pronunciation and clarity of words in compositions.
• Mewati Gharana
• The Mewati Gharana was founded by Pandit Natthulal and gained prominence through Pandit Jasraj, one of its most celebrated exponents.
• It is characterized by its devotional content and emphasis on a melodious and soulful presentation.
• The gharana incorporates elements of Haveli Sangeet, a form of temple music dedicated to Lord Krishna.

The correct answer is Andhra Pradesh MedTech Zone (AMTZ).

Key Points

• The 'Innovation Passport' is an initiative launched by the Andhra Pradesh MedTech Zone (AMTZ) to accelerate the transformation of healthcare ideas into market-ready solutions.
• This initiative will serve as a single-access gateway for innovators, startups, and enterprises in the medtech sector.
• The program aims to address various challenges faced by innovators in the healthcare industry, such as regulatory bottlenecks, funding gaps, and lack of infrastructure.
• AMTZ is a leading medical technology park in India, established to promote domestic manufacturing of medical devices and reduce dependency on imports.
• The Innovation Passport is expected to be a game-changer in the healthcare and medtech ecosystem, enhancing India's position as a global hub for medical device innovation and manufacturing by 2025.

Additional Information

• Indian Council of Medical Research (ICMR):
• ICMR is one of the oldest and most prestigious research bodies in the world, under the Ministry of Health and Family Welfare, Government of India.
• Its primary mandate is to promote, coordinate, and conduct biomedical research for improving public health.
• ICMR contributes significantly to India's healthcare innovation but is not directly associated with the 'Innovation Passport' initiative.
• National Institute of Pharmaceutical Education and Research (NIPER):
• NIPER is a national-level institute for advanced research in pharmaceutical sciences, under the Ministry of Chemicals and Fertilizers.
• It aims to enhance pharmaceutical education and research in India, focusing on drug development and related fields.
• While it plays a critical role in the pharmaceutical sector, it is not related to the 'Innovation Passport' initiative.
• Biotechnology Industry Research Assistance Council (BIRAC):
• BIRAC is a public sector enterprise under the Department of Biotechnology, Government of India.
• It supports and promotes biotech innovation and entrepreneurship in India.
• Though BIRAC has launched several initiatives to foster innovation, it is not the organization behind the 'Innovation Passport' program.
• About Andhra Pradesh MedTech Zone (AMTZ):
• AMTZ is India's first integrated medical device manufacturing park, located in Visakhapatnam, Andhra Pradesh.
• It provides state-of-the-art infrastructure, testing facilities, and regulatory support to medtech companies.
• AMTZ has been instrumental in reducing India's dependency on imported medical devices and promoting domestic innovation.

The correct answer is Shehnai.

Key Points

• The Shehnai is a traditional Sushir Vadya (wind instrument) used in Indian classical music.
• It is an aerophonic instrument, producing sound by blowing air through its reed and body.
• The Shehnai is commonly used in auspicious occasions, such as weddings and temple ceremonies, due to its melodious and soothing sound.
• It is believed to bring good fortune and is widely played in North Indian classical music performances.
• Ustad Bismillah Khan, a legendary musician, is considered the maestro of Shehnai and played a vital role in popularizing the instrument globally.

Additional Information

• Tappu:
• Tappu is a percussion instrument mainly used in South Indian folk music.
• It belongs to the Avanaddha Vadya category, which comprises instruments that produce sound by striking a stretched membrane.
• The Tappu is typically used in religious and festive celebrations, particularly in Tamil Nadu.
• Ghatam:
• The Ghatam is a traditional South Indian percussion instrument made of clay.
• It is classified as a Ghana Vadya (solid instrument) and is played by striking its body with fingers, palms, and nails.
• The Ghatam is a key accompaniment in Carnatic music concerts.
• Cymbal:
• Cymbals are metallic percussion instruments that fall under the Ghana Vadya category.
• They are commonly used in both classical and folk music performances worldwide.
• In Indian music, cymbals such as the Manjira are used in devotional and folk music traditions.

The correct answer is Ayurveda for People and Planet.

Key Points

• The theme for National Ayurveda Day in 2025, celebrated on 23^rd September, was “Ayurveda for People and Planet.”
• This theme emphasizes the importance of Ayurveda not just for individual health but also for promoting environmental sustainability and harmony.
• Ayurveda, as a traditional system of medicine, integrates human well-being with ecological balance, advocating for natural remedies and eco-friendly practices.
• The celebration aims to increase global awareness about the benefits of Ayurveda and its role in combating modern health challenges while being sustainable for the planet.
• National Ayurveda Day is an initiative of the Ministry of AYUSH, India, to promote and preserve Ayurveda, one of the world's oldest holistic healing systems.

Additional Information

• National Ayurveda Day
• National Ayurveda Day is celebrated annually on the occasion of Dhanvantari Jayanti (Dhanteras).
• It was first observed in 2016 to promote and propagate the benefits of Ayurveda globally.
• The day honors Lord Dhanvantari, considered the god of Ayurveda and health, and his contributions to holistic healing.
• The Ministry of AYUSH organizes various events, seminars, and awareness campaigns on this day to highlight Ayurveda’s role in preventive and curative healthcare.