Genotype To Phenotype 2

9 Questions | Total Attempts: 43

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Genotype To Phenotype 2

Kurdistani 8/14/08 lec 1


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Questions and Answers
  • 1. 
    Enhancer elements
    • A. 

      Stimulate gene expression

    • B. 

      Are orientation dependent

    • C. 

      Bind transcriptional activators

    • D. 

      A and B

    • E. 

      A and C

  • 2. 
    Sp1 in CpG islands can
    • A. 

      Recruit Pol II machinery for PIC formation

    • B. 

      Initiate transcription in vitro

    • C. 

      Repress gene expression

    • D. 

      Use Pol III for transcription

    • E. 

      A and B

  • 3. 
    True or False: Purified Pol II can initiate promoter-driven transcription
    • A. 

      True

    • B. 

      False

  • 4. 
    _______________ are the main regulators of gene expression
  • 5. 
    Transcription factors are composed of
    • A. 

      DNA binding domain

    • B. 

      Activator/repressor domain

    • C. 

      RNA pol II

    • D. 

      BRE

    • E. 

      A and B

  • 6. 
    The __________ subunit of the ribosome checks to determine whether the tRNA antibodon and mRNA codon have formed hydrogen bonds.
  • 7. 
    _______________ occurs in 3 steps: initiation, elongation, and termination
  • 8. 
    The ________ subunit of the ribosome has four sites: transfer site, amino acid site, polypeptide site, and exit site.
  • 9. 
    Many antibiotics and toxins function to inhibit ___________________.