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Q. Which of the following phytohormone is responsible for regulating the opening and closing of stomata ? A) GA B) ABA C) IBA D) k…
Q. The amount of water to be added to 10 ml of 10 N HCL solution to make it decinormal solution is A) 1000 ml B) 990 ml C) 100 ml …
Q. At which stage of mitosis do you find chromosomes being first visible under the microscope ? A) Metaphase B) Telophase C) Prophase …
Q. Which one of the following is not a water soluble vitamin ? A) Cyanocobalamine B) Ascorbic acid C) Retinol D) Niacin ... …
Q. Histamine is released by which of these cells ? A) Macrophages B) Lymphocytes C) Mast cells D) Basophils ... Answer is …
Q. An allosteric inhibitor of an enzyme usually A) binds to the active site B) participates in feedback regulation C) denatures the en…
Q. Which of the following group represents pro-inflammatory cytokines ? A)IL-2, IL-4, IL-5, IL-15 B) IL-10, TGF-β, IL-13 C) IL-1, IL-6…
Q. Which one of the following, oxygenic photosynthesis does not occur in the specialized organelles ? A) Auto-heterotrophic bacteria B) Cy…
Q. The enzymes which do not conform to Michaelis-Menten kinetics such as aspartate transcarbamoylase are called A) allosteric enzymes B) …
Q. If lysosomes in a cell are ruptured, what would be the most likely effect ? A) The mitochondria and the chloroplasts would divide B) T…
Q. What is the role of DNA ligase in DNA replication ? A) add more nucleotides to the growing strand one at a time B) ligate base to suga…
Q. When tryptophan accumulates in a bacterial cell A) it binds to the operator, preventing transcription of adjacent genes B) it binds to …
Q. Which of the following statement about the structure of skeletal muscle is true ? A) The light bands of the sarcoma are the region where ac…
Q. For an enzyme assay, it was observed based on the change of the product thus formed that 100 μ moles of the substrate is converted to product pe…
Q. Identify the prochiral molecule in the citric acid cycle A) Oxaloacetate B) Isocitrate C) Citrate D) Succinate ... Ans…
