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Indian Navy INET Science & Technology — practice questions

Explore 8 free Science & Technology questions in Indian Navy INET Science. Open each question or exercise to read its content, reference answers and available explanation.

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Science & Technology questions and exercises with answers

Showing questions 1–8 of 8.

Order how Bt toxin kills a pestRead the answer and worked solution →Mark the biotech term each clue fitsRead the answer and worked solution →Catch the gains GM crops deliverRead the answer and worked solution →Stack tools by diagnosis or therapyRead the answer and worked solution →Match each tool to the job it doesRead the answer and worked solution →Sort each result: plant or animalRead the answer and worked solution →Judge each biotechnology claimRead the answer and worked solution →Complete how RNA interference worksRead the answer and worked solution →

Worked practice questions

Order how Bt toxin kills a pest

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Steps
  1. Insect eats toxin
  2. Alkaline gut pH
  3. Crystals dissolve
  4. Toxin turns active
  5. Binds midgut cells
  6. Pores cause lysis
  7. Insect dies
Instructions
Tap the steps in the order they happen after an insect swallows the crystal.
_Source: syllabus Biology, Ch 10 Biotechnology and Its Applications_

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Mark the biotech term each clue fits

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Clues and terms
  1. Clue
    Power of any plant cell or explant to grow back into a whole plant
    Item
    Totipotency
  2. Clue
    Tissue culture plants that are genetically identical to the parent plant
    Item
    Somaclones
  3. Clue
    Insecticidal crystal protein made by Bacillus thuringiensis
    Item
    Bt toxin
  4. Clue
    Silencing of an mRNA by a complementary double stranded RNA
    Item
    RNAi
  5. Clue
    Rice given enriched Vitamin A through genetic modification
    Item
    Golden rice
  6. Clue
    Amplifies a pathogen's nucleic acid so infection shows before symptoms
    Item
    PCR
  7. Clue
    Diagnosis built on the antigen and antibody interaction
    Item
    ELISA
  8. Clue
    Indian body ruling on GM research validity and GM organism safety
    Item
    GEAC
  9. Clue
    Taking bio-resources with no authorisation and no compensatory payment
    Item
    Biopiracy
Instructions
Read the clue, then tap the cell on the board that it describes.
_Source: syllabus Biology, Ch 10 Biotechnology and Its Applications_

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Catch the gains GM crops deliver

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Items
  1. Matches the category
    Yes
    Item
    Salt tolerance
  2. Matches the category
    No
    Item
    Pomato hybrid
  3. Matches the category
    Yes
    Item
    Fewer pesticides
  4. Matches the category
    Yes
    Item
    Cold tolerance
  5. Matches the category
    No
    Item
    Meristem culture
  6. Matches the category
    Yes
    Item
    Vitamin A rice
  7. Matches the category
    No
    Item
    Somaclone plants
  8. Matches the category
    Yes
    Item
    Less spoilage
Category
Gains from GM crops
Instructions
Hop the basket left and right with the arrow buttons and catch only the GM gains.
_Source: syllabus Biology, Ch 10 Biotechnology and Its Applications_

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