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Q.8 Which one of the following components of bacterial cell acts as endotoxin?(A) Peptidoglycan of Gram–positive bacteria (B) Lipopolysaccharide(C) Porins (D) Peptidoglycan of Gram–negative bacteria Lipopolysaccharide (LPS) from the outer […]

Q.7 The type of immunological protection provided by plasma therapy is(A) Natural active (B) Natural passive(C) Artificial active (D) Artificial passive The type of immunological protection provided by plasma therapy […]

Q.6 Bacterial strains that do not grow in the absence of a specific nutrient are called(A) Heterotrophs (B) Chemotrophs (C) Autotrophs (D) Auxotrophs Bacterial strains unable to grow without a […]

Q.5 Ecosystem ecology is the study of(A) An organism’s behavior towards environmental challenges(B) Factors that affect the interactions of individuals in a population(C) Interactions among biotic and abiotic components(D) Factors […]

Q.4 Which one of the following features distinguishes between gymnosperms and angiosperms?(A) Seed formation (B) Vascular tissues(C) Seed cover (D) Gamete production Gymnosperms vs Angiosperms: Seed Cover Distinguishes Them in […]

Q.3 If the blood groups of mother and father are AB and O, respectively, what are the blood groupspossible for their child?(A) AB or A (B) AB (C) A or […]

Q.2 Ethylbutyrate is responsible for the odor of pineapple. Which one of the following is the structureof ethyl butyrate? Ethyl butyrate (ethyl butanoate) is the ester formed from butyric acid […]

Q.1 An acid contains C, H and O atoms. On combustion analysis, 0.454 g of the acid gives 0.418 g ofH2O and 1.023 g of CO2. What is the empirical […]

Q.60 Amongst the molecules given below, the total number of molecules that have atleast one sp2 hybridized atom is __________.C6H6, NO2, BF3, H2O2, SO2, C2H2, L–Tryptophan C6H6, NO₂, BF₃, H₂O₂, […]

Q.59 How many GTP molecules are required for the translocation of tRNA from Psite to E site during translation elongation process in bacteria? One GTP molecule is required for the […]