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BIOLOGY MCQs

MCQs on Chlorofluorocarbons

MCQs on Chlorofluorocarbons 1. Which of the following statements is true about chlorofluorocarbons? Chlorofluorocarbons are used as refrigerants Chlorofluorocarbons are used as fuel for air crafts Chlorofluorocarbons are used as repairers of the ozone layer Chlorofluorocarbons are used as repairers…

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MCQs on Molecular Biology

MCQs on Molecular Biology 1. The function of β subunit of polymerase is a. Template binding b. Catalytic binding c. Promoter binding d. Cation binding 2. Which of the σ factors is heat stable? a. σ 54 b. σ 70…

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MCQs on Photosynthesis

MCQs on Photosynthesis 1. Photosynthesis occurs in a. Chloroplast b. Golgi body c. Endoplasmic reticulum d. Nucleus 2. The optimum temperature for photosynthesis is a. 25-35℃ b. 10-15℃ c. 35-40℃ d. 20-25℃ 3. Photorespiration occurs in a. Four cell organelles…

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MCQs on Human Reproduction

MCQs on Human Reproduction 1. _______ is a lytic enzyme released by the sperm. a. Hyaluronidase b. Trypsin c. Helicase d. None of the above 2. How many autosomes does a human primary spermatocyte have? a. 34 b. 44 c.…

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MCQs on Animal Physiology

MCQs on Animal Physiology 1. Where are histamine-secreting cells found? a. Nervous tissue b. Connective tissue c. Areolar tissue d. None of the above 2. What is collagen? a. Fat b. Protein c. Carbohydrate d. None of the above 3.…

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MCQs on Evolution

MCQs on Evolution 1. The force that initiates evolution is ______ a. Variation b. Mutation c. Extinction d. Adaptation 2. ___________ is a vestigial organ a. Intestinal villi b. Papillae c. Vermiform appendix d. None of the above 3. The…

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MCQs on Animal Morphology

MCQs on Animal Morphology 1. Tendons and ligaments are made of a. Special connective tissue b. Epithelial tissues c. Dense regular connective tissue d. Loose conductive tissue 2. Where are intercalated discs found? a. Skeletal muscles b. Tendons c. Spinal…

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MCQs on Reproductive Health

MCQs on Reproductive Health 1. Which Artificial Reproductive Technique can help a lady conceive a child if both her fallopian tubes are blocked? a. SUZI b. IVF c. ZIFT d. GIFT 2. Which of the following is not a copper-releasing…

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MCQs on Enhancement of Food Production

MCQs on Enhancement of Food Production 1. ____________ is a breed of cattle. a. Jersey b. Merino c. Herdwick d. None of the above 2. Gobar gas plants use __________ bacteria a. Methanogenic b. Cyanogenic c. Oncogenic d. Pyogenic bacteria…

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MCQs on Microbes in Human Welfare

MCQs on Microbes in Human Welfare 1. Which of these processes does not give off CO2? a. Lactate fermentation b. Aerobic respiration c. Alcoholic fermentation d. None of the above. 2. High biological oxygen demand in a water body means…

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MCQs on Human Health and Disease

MCQs on Human Health and Disease 1. Immunosuppressants such as _________ prevent transplanted organs from being rejected in recipients. 1. Thrombin 2. Cyclosporine 3. Aspirin 4. None of the above 2. Both B & T lymphocytes are produced in the…

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MCQs on Biotechnology

MCQs on Biotechnology 1. Restriction enzymes were discovered by a. Smith and Nathans b. Alexander Fleming c. Berg d. None 2. Bacteria protect themselves from viruses by fragmenting viral DNA with a. Ligase b. Endonuclease c. Exonuclease d. Gyrase 3.…

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MCQs on Animal Kingdom

MCQs on Animal Kingdom 1. Which class has the largest number of animals? a. Fishes b. Reptiles c. Insects d. Mammals 2. Identify the characteristic of acoelomates a. Absence of mesoderm b. Absence of brain c. Coelom that is incompletely…

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MCQs on Biomolecules

MCQs on Biomolecules 1. Which biomolecule is distributed more widely in a cell? a. Chloroplast b. RNA c. DNA d. Spaherosomes 2. Which is a reducing sugar? a. Galactose b. Gluconic acid c. Sucrose d. β-methyl galactosidase 3. Most abundant…

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MCQs on Biodiversity and Conservation

MCQs on Biodiversity and Conservation 1. How many biogeographic does India have? 1. 5 2. 6 3. 8 4. 10 2. Lime is generally added to _____ soil. 1. Salty 2. Dry 3. Alkaline 4. Acidic 3. _______ has the…

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MCQs on Chemical Coordination and Integration

MCQs on Chemical Coordination and Integration 1. _______ controls the concentration of urine 1. ADH 2. Oxytocin 3. ACTH 4. None of the above 2. Children who have damaged thymus may result in_____________ 1. Loss of an antibody-mediated immunity 2.…

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MCQs on Breathing and Exchange of Gases

MCQs on Breathing and Exchange of Gases 1. Respiration in mature mammalian erythrocytes are __________ 1. Linear 2. Absent 3. Anaerobic 4. Aerobic 2. __________ is not a characteristic feature of the respiratory surface 1. Dry 2. Thin 3. Permeable…

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MCQs on Organisms and Populations

MCQs on Organisms and Populations 1. A group of populations of two or more species occupying the same geographical area at the same time is called 1. Ecosystem 2. Commensalism 3. Interaction 4. Community 2. Biotic factors include 1. Plants…

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MCQs on Neural Control and Coordination

MCQs on Neural Control and Coordination 1. One of the functions of the Neuroglial cells is to protect and support _________ 1. Nephrons 2. Myoid cells 3. Neurons 4. None of the above 2. The abundant inhibitory neurotransmitter found in…

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MCQs on Plant Growth and Development

MCQs on Plant Growth and Development 1. Coconut milk contains a cytokinin called ____ which promotes plant growth. 1. Naphthalene acetic acid 2. Indole-3-acetic acid 3. Gelatin 4. Zeatin 2. One of the following is not an auxin 1. Indole-3-acetic…

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