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Le Hw3.8 Genetic Engineering

7 Questions
Le Hw3.8 Genetic Engineering

These questions deal with genetic engineering (most notably, gene splicing). REMEMBER: PERIOD# followed by FIRST & LAST NAME.

Questions and Answers
  • 1. 
    Base your answers to this question on the diagram below, which illustrates some steps in genetic engineering and on your knowledge of biology.  What is the result of step 3?    
    • A. 

      A new type of molecular base is formed

    • B. 

      Different types of minerals are joined together

    • C. 

      DNA from the bacterial cell is cloned

    • D. 

      DNA from different organisms is joined together

  • 2. 
    The diagram below represents a genetic procedure.     Which statement best describes the outcome of this procedure?
    • A. 

      Bacterial cells will destroy defective human genetic material.

    • B. 

      Bacterial cells may form a multicellular embryo.

    • C. 

      The inserted human DNA will change harmful bacteria to harmless ones.

    • D. 

      The inserted human DNA may direct the synthesis of human proteins.

  • 3. 
    The diagrams below represent some steps in a procedure used in biotechnology.     Letters X and Y represent the
    • A. 

      Hormones that stimulate the replication of bacterial DNA

    • B. 

      Biochemical catalysts involved in the insertion of genes into other organisms

    • C. 

      Hormones that trigger rapid mutation of genetic information

    • D. 

      Gases needed to produce the energy required for gene manipulation

  • 4. 
    The diagram below represents a common labo- ratory technique in molecular genetics.  One common use of this technology is the
    • A. 

      Production of a human embryo to aid women who are unable to have children

    • B. 

      Change of single-celled organisms to multicellular organisms

    • C. 

      Introduction of a toxic substance to kill bacterial cells

    • D. 

      Production of hormones or enzymes to replace missing human body chemicals

  • 5. 
    The headline “Improved Soybeans Produce Healthier Vegetable Oils” accompanies an article describing how a biotechnology company controls the types of lipids (fats) present in soybeans. The improved soybeans are most likely being developed by the process of
    • A. 

      Natural selection

    • B. 

      Asexual reproduction

    • C. 

      Genetic engineering

    • D. 

      Habitat modification

  • 6. 
    Some goats have been genetically modified with a human gene that codes for a blood anticlotting factor. The anticlotting factor can then be extracted from the goat milk and used during surgery. To produce these genetically modified goats, scientists most likely
    • A. 

      Injected the anticlotting factor into the milk-producing glands of the animals

    • B. 

      added modified DNA into the milk of the animals

    • C. 

      Inserted the human gene into the egg cells of goats

    • D. 

      Altered the nutritional requirements of newborn goats

  • 7. 
    Which statement best describes human insulin that is produced by genetically engineered bacteria?
    • A. 

      This insulin will not function normally in humans because it is produced by bacteria.

    • B. 

      This insulin is produced as a result of human insulin being inserted into bacteria cells.

    • C. 

      This insulin is produced as a result of exposing bacteria cells to radiation, which produces a mutation.

    • D. 

      This insulin may have fewer side effects than the insulin previously extracted from the pancreas of other animals.