Biology: RNA and DNA Synthesis Quiz
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Questions and Answers

What is the primary difference between DNA and RNA in terms of their nitrogenous bases?

  • RNA contains guanine instead of cytosine
  • RNA contains uracil instead of thymine (correct)
  • RNA contains adenine instead of guanine
  • RNA contains cytosine instead of adenine

    • What is the primary function of restriction enzymes?

  • To cut DNA at specific restriction sites (correct)
  • To bind to mRNA and initiate translation
  • To make copies of DNA quickly
  • To remove introns from RNA

    • What is the relationship between introns and exons in a gene?

  • Introns and exons are both coding regions of a gene
  • Introns are non-coding regions and exons are coding regions (correct)
  • Introns and exons are both non-coding regions of a gene
  • Introns are coding regions and exons are non-coding regions

    • What is the primary purpose of the polymerase chain reaction (PCR) technique?

    <p>To produce large amounts of DNA quickly</p> Signup and view all the answers

    Which of the following correctly describes the process of transcription?

    <p>Transcription is the process by which DNA makes RNA</p> Signup and view all the answers

    What is the role of RNA processing in protein synthesis?

    <p>RNA processing occurs after transcription but before translation, and it removes introns</p> Signup and view all the answers

    Which of the following processes involves the removal of introns from the initial RNA transcript?

    <p>RNA processing</p> Signup and view all the answers

    In the process of transcription, which of the following is involved in the initiation step?

    <p>RNA polymerase</p> Signup and view all the answers

    Which technique is commonly used to amplify specific DNA sequences?

    <p>Polymerase Chain Reaction (PCR)</p> Signup and view all the answers

    During translation, which of the following molecules carries the amino acid to the ribosome?

    <p>tRNA</p> Signup and view all the answers

    What is the role of restriction enzymes in molecular biology?

    <p>Cutting DNA at specific recognition sequences</p> Signup and view all the answers

    Which of the following processes occurs in the nucleus of eukaryotic cells?

    <p>Both B and C</p> Signup and view all the answers

    Which of the following is NOT a step involved in the process of transcription?

    <p>Formation of a polypeptide chain</p> Signup and view all the answers

    Which of the following techniques is used to amplify a specific region of DNA?

    <p>Polymerase chain reaction (PCR)</p> Signup and view all the answers

    What are the molecular scissors referred to in the context of DNA manipulation?

    <p>Restriction enzymes</p> Signup and view all the answers

    What is the term used to describe the combination of DNA from two different sources into a single cell?

    <p>Recombinant DNA technology</p> Signup and view all the answers

    Which of the following statements about introns is correct?

    <p>Introns are non-coding regions of DNA that are removed during RNA processing.</p> Signup and view all the answers

    What is the primary function of RNA polymerase in the context of gene expression?

    <p>To synthesize RNA from a DNA template</p> Signup and view all the answers

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