Biology Chapter on DNA and RNA
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Questions and Answers

Which of the following is NOT a structural difference between DNA and RNA?

  • DNA is double-stranded, while RNA is single-stranded.
  • DNA contains deoxyribose sugar, while RNA contains ribose sugar.
  • DNA is helical, while RNA is linear. (correct)
  • DNA contains thymine, while RNA contains uracil.
  • RNA plays a crucial role in which of the following processes?

  • Photosynthesis
  • Cellular respiration
  • Protein synthesis (correct)
  • DNA replication
  • Which of the following statements accurately describes the role of DNA?

  • DNA is directly involved in the synthesis of proteins.
  • DNA serves as a template for the production of RNA. (correct)
  • DNA is responsible for transporting genetic information to the ribosomes.
  • DNA acts as a catalyst in the process of protein synthesis.
  • Which base pair found in DNA is replaced by a different base pair in RNA?

    <p>Adenine and Thymine (C)</p> Signup and view all the answers

    Which type of RNA is responsible for bringing amino acids to the ribosomes during protein synthesis?

    <p>Transfer RNA (tRNA) (D)</p> Signup and view all the answers

    Study Notes

    Importance of DNA and RNA

    • DNA stores the genetic instructions for all living organisms.
    • RNA plays a crucial role in protein synthesis and gene regulation.

    Structural Differences Between DNA and RNA

    • DNA: A double-stranded helix. Its sugar is deoxyribose. The base thymine is found in DNA.
    • RNA: A single-stranded molecule. Its sugar is ribose. The base uracil is found in RNA instead of thymine.

    Functional Differences Between DNA and RNA

    • DNA: Primarily responsible for storing and transmitting genetic information to the next generation.
    • RNA: Has diverse functions. It's involved in protein synthesis (mRNA). Other types of RNA (tRNA and rRNA) also assist in translation. It also plays a role in gene regulation.

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    Description

    Explore the vital roles and structural differences between DNA and RNA in this quiz. Learn how DNA stores genetic information and how RNA is crucial in protein synthesis and regulation. Test your knowledge on their unique functions and characteristics.

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