DNA Structure and Composition Quiz
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Questions and Answers

What did James Watson and Francis Crick describe in 1953?

  • The composition of a phosphate group
  • The determination of a left-handed double helix
  • The structure of deoxyribonucleic acid (DNA) (correct)
  • The discovery of nucleotides

    • What are nucleotides composed of?

  • Amino acids, lipids, and carbohydrates
  • Fatty acids, glycerol, and phosphate group
  • Phosphate group, sugar, and nitrogenous base (correct)
  • Ribose, deoxyribose, and phosphodiester bond

    • What was the structure of DNA determined to be?

  • A single-stranded helix
  • A triple-stranded helix
  • A left-handed double helix
  • A right-handed double helix (correct)

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