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Viruses and oceans/bacteria — UPSC Prelims PYQ 2025Jeevan Bisht2025 / Biology / General Science / UPSC Prelims PYQs
UPSC Prelims PYQ 2024: Which molecule dilates blood vessels and increases blood flow?Jeevan Bisht2024 / Biology / General Science / UPSC Prelims PYQs
Groundnut, Horse-gram, Soybean — UPSC Prelims PYQ 2024Jeevan Bisht2024 / Biology / General Science / UPSC Prelims PYQs
Probiotics: key facts | UPSC Prelims PYQ 2022Jeevan Bisht2022 / Biology / General Science / UPSC Prelims PYQs
Culturing Bacteria, Fungi and Viruses — UPSC Prelims PYQ 2021Jeevan Bisht2021 / Biology / General Science / UPSC Prelims PYQs
Plant cells vs Animal cells — UPSC Prelims PYQ 2020Jeevan Bisht2020 / Biology / General Science / UPSC Prelims PYQs
Can viruses infect bacteria, fungi and plants? – UPSC Prelims PYQ 2016Jeevan Bisht2016 / Biology / General Science / UPSC Prelims PYQs
Odd one out — Arthropod classes: UPSC Prelims PYQ 2014Jeevan Bisht2014 / Biology / General Science / UPSC Prelims PYQs
Vegetative propagation characteristics — UPSC Prelims PYQ 2014Jeevan Bisht2014 / Biology / General Science / UPSC Prelims PYQs
Photosynthesis process — UPSC Prelims PYQ 2014Jeevan Bisht2014 / Biology / General Science / UPSC Prelims PYQs
Lichens as symbiotic association — UPSC Prelims PYQ 2014Jeevan Bisht2014 / Biology / General Science / UPSC Prelims PYQs
Viruses — Culturing and Transmission — UPSC Prelims PYQ 2013Jeevan Bisht2013 / Biology / General Science / UPSC Prelims PYQs
Transplanted Seedlings Failure — UPSC Prelims PYQ 2013Jeevan Bisht2013 / Biology / General Science / UPSC Prelims PYQs
Why cold storage extends fruit life — UPSC Prelims PYQ 2013Jeevan Bisht2013 / Biology / General Science / UPSC Prelims PYQs
Minerals required for muscle contraction – UPSC Prelims PYQ 2013Jeevan Bisht2013 / Biology / General Science / UPSC Prelims PYQs
Aflatoxins: their source in stored grains — UPSC Prelims PYQ 2013Jeevan Bisht2013 / Biology / General Science / UPSC Prelims PYQs
Ultraviolet Radiation in Water Purification UPSC Prelims PYQ 2012PMF IAS2012 / Biology / General Science / UPSC Prelims PYQs
UPSC Prelims PYQ 2011: How antioxidants promote health and longevityPMF IAS2011 / Biology / General Science / UPSC Prelims PYQs
Blood Group Puzzle (Adopted Child) — UPSC Prelims PYQ 2011PMF IAS2011 / Biology / General Science / UPSC Prelims PYQs
Advertising ‘No Trans-Fats’ meaning — UPSC Prelims PYQ 2011PMF IAS2011 / Biology / General Science / UPSC Prelims PYQs
UPSC Prelims PYQ 2011: Why Tree Dies After Ring-Barking (Girdling)PMF IAS2011 / Biology / General Science / UPSC Prelims PYQs
Why some plant species are insectivorous — UPSC Prelims PYQ 2010PMF IAS2010 / Biology / General Science / UPSC Prelims PYQs
UPSC Prelims PYQ 2010: Why carbon monoxide reduces oxygen supply in body?PMF IAS2010 / Biology / General Science / UPSC Prelims PYQs
UPSC Prelims PYQ 2010: Correct evolutionary sequence among given animalsPMF IAS2010 / Biology / General Science / UPSC Prelims PYQs
UPSC Prelims PYQ 2010: Which process is a digestive process?PMF IAS2010 / Biology / General Science / UPSC Prelims PYQs
Evolutionary sequence among organisms — UPSC Prelims PYQ 2009PMF IAS2009 / Biology / General Science / UPSC Prelims PYQs
UPSC Prelims PYQ 2008: Organism where female kills male after copulationPMF IAS2008 / Biology / General Science / UPSC Prelims PYQs
UPSC Prelims PYQ 2007: Which light types are strongly absorbed by plants?PMF IAS2007 / Biology / General Science / UPSC Prelims PYQs
Amoeba reproduction — Assertion–Reason UPSC Prelims PYQ 2005PMF IAS2005 / Biology / General Science / UPSC Prelims PYQs
Ticks and Mites Classification — UPSC Prelims PYQ 2002PMF IAS2002 / Biology / General Science / UPSC Prelims PYQs
UPSC Prelims PYQ 2002: Most responsible factor for origin of new speciesPMF IAS2002 / Biology / General Science / UPSC Prelims PYQs
Organelle with DNA besides nucleus — UPSC Prelims PYQ 2001PMF IAS2001 / Biology / General Science / UPSC Prelims PYQs
Eye Donation — Which Part Is Utilised? UPSC Prelims PYQ 1999PMF IAS1999 / Biology / General Science / UPSC Prelims PYQs
UPSC Prelims PYQ 1998: Match theories and scientists — Mutation, Evolution, One gene–one enzyme, OperonPMF IAS1998 / Biology / General Science / UPSC Prelims PYQs
Iodine test: starch vs cellulose — UPSC Prelims PYQ 1998PMF IAS1998 / Biology / General Science / UPSC Prelims PYQs
Arteries supplying blood to the heart — UPSC Prelims PYQ 1997PMF IAS1997 / Biology / General Science / UPSC Prelims PYQs
Nutritional value found in milk — UPSC Prelims PYQ 1996PMF IAS1996 / Biology / General Science / UPSC Prelims PYQs
Fat present below the skin surface — UPSC Prelims PYQ 1996PMF IAS1996 / Biology / General Science / UPSC Prelims PYQs
Which is not an essential micronutrient for plants? UPSC Prelims PYQ 1996PMF IAS1996 / Biology / General Science / UPSC Prelims PYQs
UPSC Prelims PYQ 1996 — Match Vitamin, Enzyme, Hormone, ProteinPMF IAS1996 / Biology / British Conquest / General Science / Indian History / Modern India / Personalities / UPSC Prelims PYQs
AB blood group called universal recipient — UPSC Prelims PYQ 1995PMF IAS1995 / Biology / General Science / UPSC Prelims PYQs
UPSC Prelims PYQ 1995: Why do most desert plants bloom at night?PMF IAS1995 / Biology / General Science / UPSC Prelims PYQs
Which hormone contains iodine? — UPSC Prelims PYQ 1995PMF IAS1995 / Biology / General Science / UPSC Prelims PYQs
