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DNA Structure quiz #2 Flashcards

DNA Structure quiz #2
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  • What makes up the backbone of a DNA molecule?
    Deoxyribose sugar and phosphate groups.
  • What are the four bases that make up DNA?
    Adenine, thymine, cytosine, and guanine.
  • What are the DNA backbones made of?
    Alternating deoxyribose sugars and phosphate groups.
  • Which nitrogen base is not found in DNA?
    Uracil.
  • What forms the backbone of DNA?
    Sugar (deoxyribose) and phosphate groups.
  • Which nitrogenous base is not found in RNA?
    Thymine.
  • Which of the following best describes the physical structure of a gene?
    A specific sequence of DNA bases.
  • What holds the two strands of DNA together?
    Hydrogen bonds between complementary bases.
  • What holds two strands of DNA together?
    Hydrogen bonds.
  • How many hydrogen bonds hold adenine and thymine together?
    Two.
  • What is the backbone of DNA?
    A chain of alternating deoxyribose sugars and phosphate groups.
  • How are the two strands of DNA held together?
    By hydrogen bonds between complementary nitrogenous bases.
  • What do the two strands of DNA join together to form?
    A double helix.
  • Which of the following is found in DNA but not in RNA?
    Thymine.
  • What are the 4 bases found in DNA?
    Adenine, thymine, cytosine, and guanine.
  • What is the DNA backbone made of?
    Deoxyribose sugar and phosphate groups.
  • What base is found in DNA but not in RNA?
    Thymine.
  • What kind of chemical bond is found between paired bases of the DNA double helix?
    Hydrogen bonds.
  • What are the four nitrogen bases found in DNA?
    Adenine, thymine, cytosine, and guanine.
  • What are the four different DNA bases?
    Adenine, thymine, cytosine, and guanine.
  • How many strands make up DNA?
    Two.
  • What nitrogen base pairs with thymine?
    Adenine.
  • What do we call the shape or arrangement of a strand of DNA?
    Double helix.
  • What is the common name for deoxyribonucleic acid?
    DNA.
  • How are the two strands of nucleic acid in DNA held together?
    By hydrogen bonds between complementary bases.
  • Nucleotides in each strand of DNA are held together by what type of bonds?
    Phosphodiester bonds.
  • What forces hold the two strands of DNA together?
    Hydrogen bonds.
  • What are the 4 nitrogen bases found in DNA?
    Adenine, thymine, cytosine, and guanine.
  • Who bonds to thymine?
    Adenine.
  • What forms the backbone of the DNA molecule?
    Alternating deoxyribose sugars and phosphate groups.
  • What are the 4 nitrogenous bases of DNA?
    Adenine, thymine, cytosine, and guanine.
  • What sugar is in DNA?
    Deoxyribose.
  • The double helix of DNA is which level of structure?
    Secondary structure.
  • What holds the two strands of a DNA molecule together?
    Hydrogen bonds between complementary bases.
  • The nucleotides in the backbone of the DNA strand are held together by what type of bond?
    Phosphodiester bonds.
  • Which of the following is a nitrogen base for DNA?
    Guanine.
  • DNA gets its name from what?
    The sugar deoxyribose in its structure.
  • Which components make up the backbone of a DNA molecule?
    Deoxyribose sugar and phosphate groups.
  • Two components that make up the backbone of a DNA molecule?
    Deoxyribose sugar and phosphate.
  • In which aspect of DNA structure are hydrogen bonds important?
    Holding the two complementary strands together.