Mammalian Cell Culture
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Questions and Answers

Which section of the course will discuss how Recombinant DNA is inserted into a cell to create recombinant proteins?

  • Section 3 (correct)
  • Section 4
  • Section 1
  • Section 2
  • What is the function of the first section of this course?

  • To discuss the types of recombinant proteins
  • To explain the structure of DNA
  • To introduce Recombinant DNA
  • To review DNA and proteins (correct)
  • What is DNA?

  • A chemical (correct)
  • A gene
  • A protein
  • A cell machinery
  • What is the purpose of the second section of this course?

    <p>To introduce Recombinant DNA</p> Signup and view all the answers

    Which molecule is the building block of DNA?

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

    What are the four bases found in DNA?

    <p>Guanine, Adenine, Thymine, Cytosine</p> Signup and view all the answers

    What is the process called when DNA is transcribed to RNA?

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

    What type of proteins require post-translational modifications to be fully functional?

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

    Which type of cells are more sensitive to changes in the cell culture environment such as temperature and pH?

    <p>Mammalian cells</p> Signup and view all the answers

    What is the main limitation of using bacterial cells to create proteins?

    <p>Bacterial cells cannot perform post-translational modifications</p> Signup and view all the answers

    Which recombinant protein is used to replace a missing protein in patients with Hemophilia A?

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

    What is the main function of Herceptin in treating breast cancer?

    <p>To stop the activation of the HER2 receptor</p> Signup and view all the answers

    Which of the following best describes recombinant DNA?

    <p>DNA molecules created by combining DNA from more than one source</p> Signup and view all the answers

    What is the role of restriction enzymes in genetic engineering?

    <p>To cut DNA into small pieces</p> Signup and view all the answers

    What is a plasmid?

    <p>A short, circular piece of DNA easily transferred between cells</p> Signup and view all the answers

    How is the gene of interest integrated into a plasmid?

    <p>Restriction enzymes cut both the gene of interest and the plasmid, and the complementary base pairs reconnect them</p> Signup and view all the answers

    Which enzyme is used to create a gap in the plasmid during the process of making a recombinant plasmid?

    <p>EcoR1</p> Signup and view all the answers

    What is the purpose of using bacterial cells to create recombinant proteins?

    <p>To express a desired gene</p> Signup and view all the answers

    What are the two common methods used to transfer a plasmid into bacterial cells?

    <p>Heat shock and electroporation</p> Signup and view all the answers

    What is the function of DNA ligase in the process of making a recombinant plasmid?

    <p>To seal the plasmid and ensure it contains the gene of interest</p> Signup and view all the answers

    Which method is used to get rid of bacterial cells that do not contain the plasmid?

    <p>Antibiotic resistance gene</p> Signup and view all the answers

    What is the reason for using a liposome in the process of transferring recombinant DNA into mammalian cells?

    <p>Liposomes are composed of lipids like the cell membrane of mammalian cells</p> Signup and view all the answers

    Why can't antibiotic selection be used to select only the mammalian cells that have taken up the plasmid?

    <p>Mammalian cells are resistant to antibiotics</p> Signup and view all the answers

    What is one advantage of using bacterial cells over mammalian cells for creating recombinant proteins?

    <p>Bacterial cells divide more quickly than mammalian cells</p> Signup and view all the answers

    Which of the following best describes fusion proteins?

    <p>Proteins that combine the desirable characteristics of two different proteins</p> Signup and view all the answers

    What are Alprolix and Eloctate?

    <p>Long-acting recombinant blood clotting factors</p> Signup and view all the answers

    Why are fusion proteins like Alprolix and Eloctate important for hemophiliacs?

    <p>They combine the blood clotting ability of a clotting factor with the stability of an antibody</p> Signup and view all the answers

    Why are antibodies considered stable in a patient's body?

    <p>They typically last for several weeks in a patient's body</p> Signup and view all the answers

    What is the advantage of fusing the gene for a blood clotting factor with a portion of the antibody gene?

    <p>It helps confer stability to the clotting factor</p> Signup and view all the answers

    What are genetically engineered animals used for in the production of biologic drugs?

    <p>To produce therapeutic proteins</p> Signup and view all the answers

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