Unleash Your Genetic Engineering Expertise
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Questions and Answers

Which process did farmers historically use to select parent plants with desired traits?

  • Molecular marker-assisted breeding
  • Genetic engineering
  • Selective breeding (correct)
  • Mutation breeding
  • What is the main goal of genetic engineering in plants?

  • To increase crop yield (correct)
  • To improve nutrition
  • To cure plant diseases
  • To enhance resistance to insect damage
  • Which of the following is a more modern technique to alter an organism's genetics?

  • Genetic engineering
  • Genome editing (correct)
  • Molecular marker-assisted breeding
  • Mutation breeding
  • What is the term used to describe deliberately modifying the characteristics of an organism by altering its genetic material?

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

    Which technology is NOT mentioned as a genetic engineering technique?

    <p>Mutation breeding</p> Signup and view all the answers

    What is the purpose of selective breeding and genetic engineering in agriculture?

    <p>To solve agricultural challenges</p> Signup and view all the answers

    Which scientist completed a landmark gene splicing experiment in 1971?

    <p>Paul Berg</p> Signup and view all the answers

    What was the first transgenic animal created by Rudolf Jaenisch and Beatrice Mintz in 1974?

    <p>A mouse</p> Signup and view all the answers

    Which company was started by Herbert Boyer in 1978?

    <p>Genentec</p> Signup and view all the answers

    Which scientist inserted an antibiotic-resistant gene into a tobacco plant in 1983?

    <p>Mary-Dell Chilton</p> Signup and view all the answers

    What was the first genetically modified animal approved for food use in the United States?

    <p>A salmon</p> Signup and view all the answers

    What is the method used to change a cell's genetic makeup through the addition of new DNA?

    <p>Transformation</p> Signup and view all the answers

    Which method is used to transfer DNA into a plant's genome in genetic engineering?

    <p>Bacterial transformation</p> Signup and view all the answers

    What is the purpose of the selectable marker in genetic engineering?

    <p>To inhibit growth of non-transformed plant cells</p> Signup and view all the answers

    Which was the first genetically engineered plant evaluated by the FDA for human consumption?

    <p>FlavrSavr tomato</p> Signup and view all the answers

    What is the main reason for genetically engineering food crops?

    <p>To increase resistance to disease or pests</p> Signup and view all the answers

    Which of the following is NOT a GE food crop available in the U.S.?

    <p>Oranges</p> Signup and view all the answers

    What percentage of food-producing animals in the U.S. consume food containing ingredients from GE crops?

    <p>More than 95%</p> Signup and view all the answers

    Which enzyme was used to join the cut DNA strand in Boyer and Cohen's experiment?

    <p>Ligase enzyme</p> Signup and view all the answers

    What is the purpose of using antibiotics in Boyer and Cohen's experiment?

    <p>To kill bacteria that do not have resistance genes</p> Signup and view all the answers

    What is the role of restriction enzymes in genetic engineering?

    <p>To cut DNA at specific sequences</p> Signup and view all the answers

    Which bacterium has a natural ability to enter a plant cell and insert its own DNA into a plant's genome?

    <p>Agrobacterium tumefaciens (A. tumefaciens)</p> Signup and view all the answers

    What is a transgene in genetic engineering?

    <p>A gene that is transferred and added to the genome of a recipient plant</p> Signup and view all the answers

    Why is genetic engineering advantageous over selective breeding when it comes to enhancing drought resistance in plants?

    <p>It requires less time and avoids linkage drag</p> Signup and view all the answers

    Which method involves isolating DNA directly from the genome of the donor organism and inserting it into a plasmid for later use?

    <p>Traditional cloning</p> Signup and view all the answers

    What is a DNA library?

    <p>A collection of cloned DNA fragments stored in plasmids</p> Signup and view all the answers

    What is the purpose of a selectable marker gene in a bacterial plasmid?

    <p>To screen for bacterial or plant transformants</p> Signup and view all the answers

    Which technique is currently the most frequently used for transferring genes to plant cells?

    <p>Agrobacterium-mediated transformation</p> Signup and view all the answers

    What is the purpose of DNA ligase in the genetic engineering process?

    <p>To seal the sticky ends of DNA molecules together</p> Signup and view all the answers

    What is the role of a cloning vector in constructing a DNA library?

    <p>To store and propagate cloned DNA fragments in bacterial or yeast cells</p> Signup and view all the answers

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