21. Monoecious plant of Chara shows occurrence of :

A stamen and carpel of the same plant
B upper antheridium and lower oogonium on the same plant
C upper oogonium and lower antheridium on the same plant
D antheridiophore and archegoniophore on the same plant
Answer :   upper oogonium and lower antheridium on the same plant
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22. The "Eyes" of the potato tuber are

A root buds
B flower buds
C shoot buds
D axillary buds
Answer :   axillary buds
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23. Vegetative propagation in mint occurs by:

A offset
B rhizome
C sucker
D runner
Answer :   sucker
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24. A perennial plant differs from biennial in

A having underground perennating structure
B having asexual reproductive structures
C being tree species
D not dying after seasonal production of flowers
Answer :   not dying after seasonal production of flowers
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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