Components of Nucleic Acids Quiz
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Questions and Answers

Which type of nitrogenous bases have a single six-membered ring?

  • Pyrimidines (correct)
  • Adenine
  • Purines
  • Guanine
  • Which nitrogenous base is found in RNA but not in DNA?

  • Uracil (correct)
  • Thymine
  • Adenine
  • Cytosine
  • What monomers are used to make RNA?

  • Polysaccharides
  • Deoxyribonucleotides
  • Amino acids
  • Ribonucleotides (correct)
  • Who was the first to isolate DNA?

    <p>Friedrich Miescher</p> Signup and view all the answers

    Which scientist determined the chemical composition of nucleic acids and won the Nobel Prize in 1910?

    <p>Albrecht Kossel</p> Signup and view all the answers

    What forms the sugar-phosphate backbone in polynucleotides?

    <p>Phosphate joins between sugars of nucleotides</p> Signup and view all the answers

    What are the three components that make up a nucleotide?

    <p>Sugar, phosphate group, nitrogenous base</p> Signup and view all the answers

    Which component distinguishes deoxyribose from ribose?

    <p>Lacks an oxygen atom on the second carbon</p> Signup and view all the answers

    In DNA, what is the role of the nitrogenous base?

    <p>To store and transmit genetic information</p> Signup and view all the answers

    Which macromolecule category do nucleic acids like DNA belong to?

    <p>Nucleic acids</p> Signup and view all the answers

    What is the function of mRNA in the flow of genetic information?

    <p>Directs protein synthesis</p> Signup and view all the answers

    What is the role of ribosomes in protein synthesis?

    <p>Facilitate the synthesis of proteins</p> Signup and view all the answers

    Which type of bond joins nucleotides together in DNA strands?

    <p>Covalent bond</p> Signup and view all the answers

    In DNA, a phosphodiester bond forms between which carbons of two consecutive sugars?

    <p>3rd of one sugar and 5th of the other sugar</p> Signup and view all the answers

    Who were the researchers who worked on discovering the 3D structure of DNA?

    <p>Linus Pauling and Rosalind Franklin</p> Signup and view all the answers

    What is the genetic material that researchers knew about in the early 1950s?

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

    In a double helix structure, what are the two separate DNA polymers called?

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

    What type of bond is primarily responsible for holding the two strands of DNA together in a double helix?

    <p>Hydrogen bond</p> Signup and view all the answers

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