Unit 3 Target 3: Transcription

9 Questions | Total Attempts: 1036

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Unit 3 Target 3: Transcription


Questions and Answers
  • 1. 
    Transcription is the process by which genetic information encoded in DNA is transferred to a(n)
    • A. 

      MRNA molecule.

    • B. 

      DNA molecule.

    • C. 

      Uracil molecule.

    • D. 

      TRNA molecule.

  • 2. 
    During transcription,
    • A. 

      DNA is replicated.

    • B. 

      Proteins are synthesized.

    • C. 

      RNA is produced.

    • D. 

      Translation occurs.

  • 3. 
    During transcription, the genetic information for making a protein is “rewritten” as a molecule of
    • A. 

      Transfer RNA.

    • B. 

      Messenger RNA.

    • C. 

      Ribosomal RNA.

    • D. 

      Translation RNA.

  • 4. 
    Transcription begins when RNA polymerase
    • A. 

      Attaches to the ribosome.

    • B. 

      Binds to a strand of DNA.

    • C. 

      Binds to a strand of RNA.

    • D. 

      Attaches to the promoter sequence of a gene.

  • 5. 
    Each nucleotide triplet in mRNA that specifies a particular amino acid is called a(n)
    • A. 

      Peptide bond.

    • B. 

      Codon.

    • C. 

      Anticodon.

    • D. 

      Helicase.

  • 6. 
    Where does transcription occur?
    • A. 

      Nucleus

    • B. 

      Cytoplasm

    • C. 

      Ribosome

    • D. 

      Nucleolus

  • 7. 
    Which type of RNA functions as a “blueprint” for protein synthesis because it is complementary to the DNA?
    • A. 

      MRNA

    • B. 

      TRNA

    • C. 

      RNA polymerase

    • D. 

      RRNA

  • 8. 
    TAC-ATT-GCA is a sequence of DNA. What will the correct sequence of mRNA be when that strand is transcribed?
    • A. 

      ATG-TAA-CGT

    • B. 

      AUG-UAA-CGU

    • C. 

      TAC-ATT-GCA

    • D. 

      ACG-TTA-CAT

  • 9. 
    A strand of DNA is made up of the bases CATAGCGTA. During transcription, what is the sequence on the mRNA strand?
    • A. 

      CAUAGCGUA

    • B. 

      UTATCUCAT

    • C. 

      GTATCGCAT

    • D. 

      GUAUCGCAU

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