761. Eukaryotes do not have

A Nucleus
B Nuclear membrane
C Histons
D Mesosomes
Answer :   Mesosomes
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762. During digestion changes in food vacuole of Amoeba occur in

A Only PH
B Only size
C PH and size
D Nne
Answer :   PH and size
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763. Which of the following virus is devoid of protein coat and entirely composed of RNA only

A TMV
B Pox - virus
C PSTV
D Calimo virus
Answer :   PSTV
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764. In which group of organisms the cell walls form two thin overlapping shells which fit together?

A Euglenoids
B Dinoflagellates
C Slime moulds
D Chrysophytes
Answer :   Chrysophytes
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765. In which 'torula conditioin' is found

A Spirogyra
B Mucor
C Riccia
D Ulothrix
Answer :   Mucor
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766. Mesosomes found in

A Fungi
B Virus
C Mycoplasma
D Bacteria
Answer :   Bacteria
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767. Most characteristic feature of diatoms is

A Pigments
B Stored food
C Cell wall
D Non oxygenic photosynthesis
Answer :   Cell wall
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768. Tikka disease of ground nut is caused by

A Colletotricum falcatum
B Corcospora personata
C Alternaria solani
D Pythium
Answer :   Corcospora personata
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769. Study of fresh water lakes, ponds and streams is called

A Oceanography
B Limnology
C Ecology
D Bioenergetics
Answer :   Limnology
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770. A colourless dinoflagellate which is also classified as protozoa

A Euglena
B Ceratium
C Noctiluca
D Gonyaulax
Answer :   Noctiluca
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Practice More MCQ Question on Biology Section

BotanyThe Living WorldBiological ClassificationPlant KingdomMorphology of Flowering PlantsAnatomy of Flowering PlantsCell: The Unit of LifeCell Cycle and Cell DivisonTransport in PlantsMineral NutritionPhotosynthesis in Higher PlantsRespiration in PlantsPlant Growth and DevelopmentReproduction in OrganismsSexual Reproduction in Flowering PlantsPrinciples of Inheritance and VariationMolecular Basis of InheritanceStrategies for Enhancement in Food ProductionMicrobes in Human WelfareOrganisms and PopulationsEcosystemBiodiversity and ConservationEnvironmental IssuesBotany Miscellaneous
ZoologyAnimal KingdomStructural Organisation in AnimalsBiomoleculesDigestion and AbsorptionBreathing and Exchange of GasesBody Fluids and CirculationExcretory Products and Their EliminationLocomotion and MovementNeural Control and CoordinationChemical Coordination and IntegrationHuman ReproductionReproductive HealthEvolutionHuman Health and DiseasesBiotechnology: Principles and ProcessesBiotechnology and its ApplicationsZoology Miscellaneous