Genetic Engineering in Agriculture Quiz
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Questions and Answers

What is the main focus of genetic engineering?

  • Studying the genetic history of organisms
  • Protecting non-domesticated relatives
  • Preserving the genetic make-up of organisms
  • Altering the genetic make-up of organisms (correct)

    • Which agricultural practice has significantly changed the genetic make-up of crops and livestock?

  • Organic farming
  • Pesticide application
  • Selective breeding (correct)
  • Genetic engineering

    • What is one of the ways genetic engineering can enhance traits in an organism?

  • Avoiding any genetic modifications
  • Disrupting the inhibition of the desired gene's expression (correct)
  • Maintaining the natural state of genes
  • Decreasing the expression of the desired gene

    • Which of the following activities is related to identifying desirable traits in plants and animals?

    <p>Selective Breeding or Classical Breeding (C)</p> Signup and view all the answers

    Why did humans unknowingly practice genetic engineering in ancient times?

    <p>To alter genetic make-up through selective breeding (A)</p> Signup and view all the answers

    Which technique involves introducing new traits into an organism using molecular methods?

    <p>Genetic Engineering (D)</p> Signup and view all the answers

    What is the name given to the molecule resulting from the combination of DNA from two different sources?

    <p>Recombinant DNA (D)</p> Signup and view all the answers

    Which type of cell is used as the host for the recombinant plasmid?

    <p>Bacterium (A)</p> Signup and view all the answers

    What is the purpose of the selection process after cloning?

    <p>To identify which cells contain the desired gene (B)</p> Signup and view all the answers

    What is determined by sequencing the gene?

    <p>The primary structure of the protein (B)</p> Signup and view all the answers

    What is the final step after the recombinant DNA process?

    <p>Introducing the recombinant plasmids to host organisms (C)</p> Signup and view all the answers

    What is the term used for a bacterium carrying the recombinant plasmid?

    <p>Recombinant bacterium (D)</p> Signup and view all the answers

    What is the purpose of using restriction enzymes in recombinant DNA technology?

    <p>To cut and cleave DNA at specific target sequences (C)</p> Signup and view all the answers

    Which of the following is commonly used as a vector in recombinant DNA technology?

    <p>Plasmids (D)</p> Signup and view all the answers

    What is the process of joining the gene of interest and the vector DNA called?

    <p>Ligation (B)</p> Signup and view all the answers

    Which of the following is NOT a characteristic of plasmids used as vectors in recombinant DNA technology?

    <p>They are part of the main cellular genome (D)</p> Signup and view all the answers

    What is the purpose of using a vector in recombinant DNA technology?

    <p>To propagate the recombinant DNA within a host organism (A)</p> Signup and view all the answers

    Classical breeding and recombinant DNA technology are both techniques used for:

    <p>Genetic engineering (D)</p> Signup and view all the answers

    What is the purpose of inserting a gene for pest resistance into a plant cell?

    <p>To make the plant resistant to pests (D)</p> Signup and view all the answers

    What technique is used to introduce DNA into plant tissues using a 'gene gun'?

    <p>Biolistic transformation (C)</p> Signup and view all the answers

    What is the purpose of the heat shock treatment in bacterial transformation?

    <p>To increase the pore sizes of the plasma membrane (B)</p> Signup and view all the answers

    Which of the following is a product that can be obtained through bacterial transformation?

    <p>Both b and c (B)</p> Signup and view all the answers

    What term is used to describe cells that have successfully taken up a plasmid and acquired new traits?

    <p>Transformed (D)</p> Signup and view all the answers

    Why is it important to control the temperature during the heat shock treatment?

    <p>To facilitate the entry of the plasmid DNA into the cells (C)</p> Signup and view all the answers

    What is the main difference between Electroporation and Heat Shock Treatment?

    <p>Electroporation uses an electric shock to expand membrane pores, while Heat Shock Treatment uses heat. (A)</p> Signup and view all the answers

    Which method is commonly used for inserting genes into mammalian cells?

    <p>Electroporation (C)</p> Signup and view all the answers

    From which book is information on Electroporation likely to be found?

    <p>Molecular Biology of the Cell by Alberts et al. (C)</p> Signup and view all the answers

    What is the purpose of expanding membrane pores in Electroporation?

    <p>To allow the insertion of genes into cells (B)</p> Signup and view all the answers

    Which grade guide is referenced for the course criteria in the text?

    <p>DepEd Guide on Grading System for Science Projects (A)</p> Signup and view all the answers

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