Question

What is true about Bt toxin?

A. Bt protein exists as active toxin in the Bacillus
B. The activated toxin enters the ovaries of the pest to sterilise it and thus prevent its multiplication
C. The concerned Bacillus has antitoxins
D. The inactive protoxin gets converted into active form in the insect gut  
Answer :   The inactive protoxin gets converted into active form in the insect gut

Releted MCQ Question on
Zoology >> Biotechnology and its Applications

Releted Question 1

In RNAi, the genes are silenced using :

A. ds - DNA
B. ds - RNA
C. ss - DNA
D. ss - RNA
View Answer
Releted Question 2

Which of the following is true for Golden rice?

A. It is vitamin $$A$$ enriched, with a gene from daffodil
B. It is pest resistant, with a gene from Bacillus thuringiensis
C. It is drought tolerant, developed using Agrobacterium vector
D. It has yellow grains, because of a gene introduced from a primitive variety of rice
View Answer
Releted Question 3

What triggers activation of protoxin to active Bt toxin of Bacillus thuringiensis in boll worm?

A. Body temperature
B. Moist surface of midgut
C. Alkaline pH of gut
D. Acidic pH of stomach
View Answer
Releted Question 4

The crops engineered for glyphosate are resistant/ tolerant to :

A. Bacteria
B. Insects
C. Herbicides
D. Fungi
View Answer

Practice More Releted MCQ Question on
Biotechnology and its Applications

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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
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