Genetics and Molecular Biology Quiz
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Questions and Answers

What is the function of a polyribosome?

  • Formation of chromatin in the nucleus
  • Simultaneous translation of a single mRNA transcript by multiple ribosomes (correct)
  • Separation of DNA strands during replication
  • Production of ribosomal RNA
  • What is the role of a promoter region in DNA?

  • Adds new nucleotides to a growing strand of DNA
  • Forms chromatin in the nucleus
  • Signals transcription to begin at that site within the gene (correct)
  • Separates the two DNA strands during replication
  • What is the function of a helicase enzyme?

  • Adds new nucleotides to a growing strand of RNA
  • Functions to separate the two DNA strands of a double helix during DNA replication (correct)
  • Simultaneous translation of mRNA transcript by multiple ribosomes
  • Forms chromatin in the nucleus
  • What is the role of an intron in pre-mRNA transcript?

    <p>Non-coding regions that may be removed during splicing</p> Signup and view all the answers

    What is the definition of gene expression?

    <p>Active interpretation of the information coded in a gene to produce a functional gene product</p> Signup and view all the answers

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