Biology: DNA, RNA, and Recombinant DNA Technology
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Questions and Answers

What is the monomer of DNA?

  • Ribonucleotides
  • Deoxy ribonucleotides (correct)
  • Glucose
  • Amino acids

    • Which vector is required in recombinant DNA technology for inserting foreign DNA into a host organism?

  • Expression vector
  • Restriction enzymes
  • Herbicides
  • Cloning vector (correct)

    • What is the role of Agrobacterium tumefaciens in plant genetic engineering?

  • To infect the plant and transfer the required genome into the plant nucleus (correct)
  • To extract human genes from WBC
  • To encode crystal protein for insecticide production
  • To produce herbicides for selecting transformed plant cells

    • Which enzyme is used to join DNA fragments in recombinant DNA technology?

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

    What was the first recombinant DNA made by Paul Berg?

    <p>Combining monkey virus SV40 with lambda virus (B)</p> Signup and view all the answers

    What is the role of herbicides in plant genetic engineering?

    <p>To kill non-transformed plant cells as a selection marker (D)</p> Signup and view all the answers

    Which molecule is a polymer of deoxyribonucleotides?

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

    What is the monomer of proteins?

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

    What is the function of Agrobacterium tumefaciens in plants during genetic engineering?

    <p>It infects the plant and transfers foreign DNA into the plant genome (B)</p> Signup and view all the answers

    Which organism provides the source of the human gene in genetic engineering?

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

    What was the first genetically modified organism (GMO) according to the text?

    <p><strong>Hirudin</strong> extracted from leeches (B)</p> Signup and view all the answers

    What type of sugar does DNA's ribose sugar contain?

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

    Which enzyme is responsible for joining DNA fragments in recombinant DNA technology?

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

    What is the role of herbicides in plant genetic engineering?

    <p>To kill non-transformed plant cells (C)</p> Signup and view all the answers

    Which organism provides the source of the human gene in genetic engineering?

    <p>White blood cells (WBC) (C)</p> Signup and view all the answers

    What was the first genetically modified organism (GMO) according to the text?

    <p>Recombinant DNA made by Paul Berg (D)</p> Signup and view all the answers

    What is the monomer of proteins?

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

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