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Introduction to Transcription quiz

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  • What is transcription in molecular biology?
    Transcription is the process of synthesizing RNA from a DNA template.
  • Which enzyme is primarily responsible for transcription?
    RNA polymerase is the primary enzyme responsible for transcription.
  • Where does transcription begin on a gene?
    Transcription begins at the promoter region of a gene.
  • What is the function of the promoter in transcription?
    The promoter is a DNA sequence where RNA polymerase binds to start transcription.
  • Where does transcription end on a gene?
    Transcription ends at the terminator region of a gene.
  • Does RNA polymerase require a primer to start transcription?
    No, RNA polymerase does not require a primer to start transcription.
  • What is the coding strand in transcription?
    The coding strand is the DNA strand whose sequence matches the RNA transcript, except RNA uses uracil instead of thymine.
  • What is the template strand in transcription?
    The template strand is the DNA strand used by RNA polymerase to synthesize a complementary RNA sequence.
  • How does the RNA sequence differ from the coding DNA strand?
    The RNA sequence is identical to the coding strand except that uracil (U) replaces thymine (T).
  • In which direction is RNA synthesized during transcription?
    RNA is synthesized from its 5' end to its 3' end during transcription.
  • What base pairing rules are followed during transcription?
    Watson and Crick base pairing rules are followed, with adenine pairing with uracil and guanine pairing with cytosine.
  • What is the initial RNA product called in eukaryotic cells?
    The initial RNA product is called a pre-mRNA transcript in eukaryotic cells.
  • What does 'upstream' refer to in DNA directionality?
    'Upstream' refers to DNA sequences in the opposite direction of transcription.
  • What does 'downstream' refer to in DNA directionality?
    'Downstream' refers to DNA sequences in the same direction as transcription.
  • What happens to the DNA during transcription?
    The DNA unwinds so that RNA polymerase can access the template strand and synthesize RNA.