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UPSC Prelims Science and Technology PYQs (2011–2026): Topic-wise with Answers – Page 2
196 UPSC Prelims questions on Science and Technology from 2011–2026, grouped by topic with the newest year first. The most-asked topics are Information and Communication Technology (36), Biotechnology (30), Biology (25). Difficulty: 19% easy, 50% medium and 31% hard.
Biotechnology 6 questions
- Recombinant DNA TechnologyRecombinant DNA technology (Genetic Engineering) allows genes to be transferred:
- Biopesticides OrganismsConsider the following kinds of organisms:
- Bt Brinjal OppositionWhat are the reasons for the people’s resistance to the introduction of Bt brinjal in India?
- Genetically Engineered Plants ProspectsOther than resistance to pests, what are the prospects for which genetically engineered plants have been created?
- Genome Mapping BenefitsAt present, scientists can determine the arrangement or relative positions of genes or DNA sequences on a chromosome. How does this knowledge benefit us?
- Bt BrinjalA genetically engineered form of brinjal, known as the Bt-brinjal, has been developed. The objective of this is
Biology 25 questions
- Viruses in Oceans and BacteriaConsider the following statements:
- Cassava Ginger Spinach Mint PapayaConsider the following pairs:
- Nitric OxideWhich one of the following is synthesised in the human body that dilates blood vessels and increases blood flow?
- Extremophile MicroorganismsConsider the following statements:
- Biofilters Aquaculture SystemsWith reference to the role of biofilters in Recirculating Aquaculture System, consider the following statements:
- Biofilm Formation SitesConsider the following statements:
- B Cells and T CellsWhich one of the following statements best describes the role of B cells and T cells in the human body?
- Culturing Microbes Artificial MediumConsider the following:
- Plant vs Animal CellsWhich of the following statements are correct regarding the general difference between plant and animal cells?
- Recent Science DevelopmentsWith reference to the recent developments in science, which one of the following statements is not correct?
- Viruses Host RangeWhich of the following statements is/are correct? Viruses can infect
- Lichens Ecological SuccessionLichens, which are capable of initiating ecological succession even on a bare rock, are actually a symbiotic association of
- Photosynthesis Energy ConversionWhich one of the following is the process involved in photosynthesis?
- Biometric IdentificationIn addition to fingerprint scanning, which of the following can be used in the biometric identification of a person?
- Vegetative PropagationWhich of the following statements is/are correct regarding vegetative propagation of plants?
- Cold Storage Fruits RespirationFruits stored in a cold chamber exhibit longer storage life because:
- Transplanting Seedlings Root HairsMany transplanted seedlings do not grow because:
- Viruses CharacteristicsWhich of the following statements is/are correct?
- Minerals Muscle ContractionConsider the following minerals:
- Stem CellsWith reference to ‘stem cells’, frequently in the news, which of the following statements is/are correct?
- Origin of Life ElementsWhich one of the following sets of elements was primarily responsible for the origin of life on the Earth?
- Carbon Cycle SourcesConsider the following:
- Antioxidants Free RadicalsRegular intake of fresh fruits and vegetables is recommended in the diet since they are a good source of antioxidants. How do antioxidants help a person maintain health…
- ABO Blood Group InheritanceA married couple adopted a male child. A few years later, twin boys were born to them. The blood group of the couple is AB positive and O negative. The blood group of…
- Girdling Tree BarkWhen the bark of a tree is removed in a circular fashion all around near its base, it gradually dries up and dies because
Space Technology 22 questions
- IN Space Private Space SectorConsider the following statements with regard to involvement of private entities in India's space programme:
- GAGAN Augmentation SystemGPS-Aided Geo Augmented Navigation (GAGAN) uses a system of ground stations to provide necessary augmentation. Which of the following statements is/are correct in…
- Microgravity Research MissionsConsider the following space missions:
- Radioisotope Thermoelectric GeneratorsWith reference to radioisotope thermoelectric generators (RTGs), consider the following statements:
- Cepheids Nebulae PulsarsConsider the following pairs:
- Satellite Navigation SystemsWhich one of the following countries has its own Satellite Navigation System?
- Solar Storm EffectsIf a major solar storm (solar-flare) reaches the Earth, which of the following are the possible effects on the Earth?
- Light Year Astronomical DistancesWhich one of the following is a reason why astronomical distances are measured in light-years?
- Elisa Space AntennaThe experiment will employ a trio of spacecraft flying in formation in the shape of an equilateral triangle that has sides one million kilometers long, with lasers…
- Remote Sensing MeasurementsFor the measurement/estimation of which of the following are satellite images/remote sensing data used?
- GPS ApplicationsIn which of the following areas can GPS technology be used?
- IRNSS Navic SatellitesWith reference to the Indian Regional Navigation Satellite System (IRNSS), consider the following statements:
- PSLV vs GSLV Launch VehiclesWith reference to India's satellite launch vehicles, consider the following statements:
- Elisa Gravitational WavesWhat is the purpose of ‘evolved Laser Interferometer Space Antenna (eLISA)’ project?
- Mars Orbiter MissionConsider the following statements: The Mangalyaan launched by ISRO
- Greased Lightning Electric AircraftWhat is ‘Greased Lightning-10 (GL-10)’, recently in the news?
- Goldilocks ZoneThe term 'Goldilocks Zone' is often seen in the news in the context of
- ISRO Indira Gandhi Peace PrizeIndira Gandhi Prize for Peace, Disarmament and Development for 2014 was given to which one of the following?
- Indian Remote Sensing SatellitesIn which of the following activities are Indian Remote Sensing (IRS) satellites used?
- Indarc Arctic ObservatoryThe term 'IndARC', sometimes seen in the news, is the name of
- Cassini Messenger Voyager MissionsWhich of the following pairs is/are correctly matched?
- Geostationary Orbit ConditionsSatellites used for telecommunication relay are kept in a geostationary orbit. A satellite is said to be in such an orbit when:
Miscellaneous Science and Technology 7 questions
- Aircraft Black BoxesWhich of the following statements with regard to Black Boxes used in modern aircrafts is/are correct?
- Deep Ocean MissionWhich of the following statements with regard to India's Deep Ocean Mission is/are correct?
- Alternative Powertrain VehiclesConsider the following types of vehicles:
- Ev Battery MaterialsIn the context of electric vehicle batteries, consider the following elements:
- Rare Earth Elements ElectronicsConsider the following statements:
- National Rail PlanConsider the following statements:
- Fuel Cell Vehicle EmissionsWhich one of the following is the exhaust pipe emission from Fuel Cell Electric Vehicles, powered by hydrogen?