Genetic Enegineering Forensics And Biology

5 Questions | Total Attempts: 679

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Genetic Enegineering Forensics And Biology

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Questions and Answers
  • 1. 
    What is the name of the enzyme that cleaves (cuts) DNA into fragments?
    • A. 

      Ligase

    • B. 

      DNA synthase

    • C. 

      Restrictive Enzymes

    • D. 

      Lactase

  • 2. 
    In Gel Electrophoresis, an electrical current (negative charges) will cause the smaller slightly charged DNA fragments to move the ____ towards the positive end (compared with the larger DNA fragments).
    • A. 

      Farthest

    • B. 

      Slowest

    • C. 

      Least

  • 3. 
    What is the function of PCR (Polymerase Chain Reaction)?
    • A. 

      PCR moves fragments of DNA away from the negative charge

    • B. 

      PCR makes multiple copies of fragments of DNA

    • C. 

      Arranges DNA according to size.

    • D. 

      Breaks DNA into equal sized pieces.

  • 4. 
    CLICK on ALL that apply. (NOTE: these is NO partial credit!) DNA can be used for analysis. DNA can USUALLY be used from (choose all that apply):
    • A. 

      Blood

    • B. 

      Cheek cells (buccal swab)

    • C. 

      Cleaned fingernails

    • D. 

      Hair follicles

    • E. 

      Hair stands (shaft) that falls out naturally.

  • 5. 
    Approximately how many base pairs are in the human genome?
    • A. 

      100 million

    • B. 

      5 billion

    • C. 

      100,000

    • D. 

      3 billion base pairs

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