Start learning →

Karnataka Police Constable Science & Technology — practice questions — page 2

Explore 34 free Science & Technology questions in Karnataka Police Constable Science. Open each question or exercise to read its content, reference answers and available explanation.

Practise Science & Technology with Quill →

Science & Technology questions and exercises with answers

Showing questions 31–34 of 34.

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

Match each tool to the job it does

Read exercise and reference answers
Matching pairs
  1. Left
    cryIAc
    Right
    Controls cotton bollworms
  2. Left
    cryIAb
    Right
    Controls corn borer
  3. Left
    B. thuringiensis
    Right
    Bacterium that makes the Bt toxin
  4. Left
    Agrobacterium
    Right
    Vector used to carry nematode genes in
  5. Left
    Retroviral vector
    Right
    Takes functional ADA cDNA into cells
  6. Left
    E. coli plasmids
    Right
    Carried the human insulin chain genes
Instructions
Tap a name on the left, then tap the job it does on the right.
_Source: syllabus Biology, Ch 10 Biotechnology and Its Applications_

Open this exercise →

Sort each result: plant or animal

Read exercise and reference answers
Left
Plants
Items
  1. Item
    Bt cotton
    Answer
    Plants
  2. Item
    Rosie the cow
    Answer
    Animals
  3. Item
    Golden rice
    Answer
    Plants
  4. Item
    Somaclones
    Answer
    Plants
  5. Item
    Transgenic mice
    Answer
    Animals
  6. Item
    Emphysema protein
    Answer
    Animals
  7. Item
    Pomato
    Answer
    Plants
  8. Item
    Polio vaccine test
    Answer
    Animals
Right
Animals
Instructions
Swipe left for a result obtained in plants, right for one obtained in animals.
_Source: syllabus Biology, Ch 10 Biotechnology and Its Applications_

Open this exercise →

Judge each biotechnology claim

Read exercise and reference answers
Questions
  1. Statement is true
    No
    Statement
    Bt toxin is already in its active form inside the bacterium that makes it.
  2. Statement is true
    Yes
    Statement
    The alkaline pH of an insect gut converts the swallowed protoxin into active toxin.
  3. Statement is true
    No
    Statement
    Enzyme replacement therapy is a complete and permanent cure for ADA deficiency.
  4. Statement is true
    Yes
    Statement
    The first clinical gene therapy was given in 1990 to a four year old girl.
  5. Statement is true
    Yes
    Statement
    GEAC decides on the validity of GM research and the safety of GM organisms.
  6. Statement is true
    Yes
    Statement
    An American company obtained patent rights on Basmati rice in 1997.
Instructions
Tap true or false for every claim as it appears.
_Source: syllabus Biology, Ch 10 Biotechnology and Its Applications_

Open this exercise →

How to practise

  1. Choose a Science & Technology question and try to work out your answer.
  2. Open the question to check the correct answer and read its worked solution.
  3. Continue in the app for bite-sized lessons, explanations and review with Quill. You can start without creating an account.

More Science topics

PhysicsChemistryBiologyWork and EnergyPeriodic TableGravitationAcids, Bases and SaltsAtomic Structure