Question

Long day plant's produces flowers when they exposed to

A. Any duration of light
B. Light period longer than a critinal day lenght  
C. Light period longer than 12 hrs.
D. None of the above
Answer :   Light period longer than a critinal day lenght

Releted MCQ Question on
Botany >> Plant Growth and Development

Releted Question 1

Typical growth curve in plants is :

A. Linear
B. Stair-steps shaped
C. Parabolic
D. Sigmoid
View Answer
Releted Question 2

Coiling of garden pea tendrils around any support is an example of:

A. thigmotaxis
B. thigmonasty
C. thigmotropism
D. thermotaxis
View Answer
Releted Question 3

Senescence as an active developmental cellular process in the growth and functioning of a flowering plant, is indicated in

A. vessels and tracheid differentiation
B. leaf abscission
C. annual plants
D. floral parts
View Answer
Releted Question 4

Opening of floral buds into flowers, is a type of

A. autonomic movement of variation
B. paratonic movement of growth
C. autonomic movement of growth
D. autonomic movement of locomotion
View Answer

Practice More Releted MCQ Question on
Plant Growth and Development

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