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Nitrogenous Bases quiz #1

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  • Which base is found only in DNA?
    Thymine is the base found only in DNA.
  • Which base is found only in DNA? Adenine, Guanine, Cytosine, Thymine
    Thymine is the base found only in DNA.
  • Which of these is(are) pyrimidines?
    Cytosine, Thymine, and Uracil are pyrimidines.
  • Which nitrogen base is not found in RNA?
    Thymine is not found in RNA.
  • What are the four bases of DNA?
    The four bases of DNA are Adenine, Guanine, Cytosine, and Thymine.
  • Which forms of guanine and thymine are favored under physiological conditions?
    The keto forms of guanine and thymine are favored under physiological conditions.
  • Which organic molecules are composed of a nitrogenous base?
    Nucleotides are composed of a nitrogenous base.
  • What are the letters that represent the 4 bases?
    The letters are A, G, C, and T for DNA; A, G, C, and U for RNA.
  • Which base is not found in mRNA?
    Thymine is not found in mRNA.
  • Which 2 biomolecules include the element nitrogen in their structures?
    Proteins and nucleic acids include nitrogen in their structures.
  • What is the significance of the pairing of nitrogenous bases?
    The pairing of nitrogenous bases ensures accurate DNA replication and RNA transcription.
  • Which nitrogen base is not found in DNA?
    Uracil is not found in DNA.
  • RNA contains which bases?
    RNA contains Adenine, Guanine, Cytosine, and Uracil.
  • What is the nitrogen base found in ATP?
    Adenine is the nitrogen base found in ATP.
  • What nitrogen base pairs with cytosine?
    Guanine pairs with cytosine.
  • Which base is not found in DNA?
    Uracil is not found in DNA.
  • What are the four nitrogenous bases?
    The four nitrogenous bases are Adenine, Guanine, Cytosine, and Thymine for DNA; Adenine, Guanine, Cytosine, and Uracil for RNA.
  • Which nucleotide is not found in RNA?
    Thymine is not found in RNA.
  • Which base is not found within DNA?
    Uracil is not found within DNA.
  • What structural feature distinguishes purines from pyrimidines?
    Purines have a double-ring structure, while pyrimidines have a single-ring structure.
  • Which nitrogen-containing base is found only in RNA?
    Uracil is found only in RNA.
  • Which base in RNA is different from that in DNA?
    Uracil in RNA replaces Thymine in DNA.
  • Which base is not found in DNA?
    Uracil is not found in DNA.
  • Which molecules are purine nitrogenous bases?
    Adenine and Guanine are purine nitrogenous bases.
  • Which nitrogen-containing base is found in DNA but not in RNA?
    Thymine is found in DNA but not in RNA.
  • Which molecules are pyrimidines?
    Cytosine, Thymine, and Uracil are pyrimidines.
  • Which RNA base is bonded with the thymine?
    In RNA, adenine pairs with uracil, not thymine.
  • Which nitrogenous base is a component of ATP?
    Adenine is a component of ATP.
  • What does adenine pair with?
    Adenine pairs with Thymine in DNA and Uracil in RNA.
  • Which base is found only in DNA? Adenine, Guanine, Cytosine, Thymine
    Thymine is found only in DNA.
  • Which base does RNA have that DNA does not have?
    RNA has Uracil, which DNA does not have.
  • A set of 3 nitrogenous bases is called what?
    A set of 3 nitrogenous bases is called a codon.
  • Which nitrogenous base is found in ATP?
    Adenine is the base found in ATP.
  • In which groups of molecules is the nitrogenous base adenine found?
    Adenine is found in DNA, RNA, and ATP.
  • What nucleotide base in DNA is replaced by uracil in RNA?
    Thymine in DNA is replaced by Uracil in RNA.
  • Which two biomolecules contain nitrogen?
    Proteins and nucleic acids contain nitrogen.
  • What are the four bases in RNA?
    The four bases in RNA are Adenine, Guanine, Cytosine, and Uracil.
  • In an RNA strand, thymine is replaced with?
    In RNA, thymine is replaced with uracil.
  • Which base is not found in DNA?
    Uracil is not found in DNA.
  • What are the four bases of RNA?
    The four bases of RNA are Adenine, Guanine, Cytosine, and Uracil.