DNA Structure and Composition

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Questions and Answers

Which molecule carries genetic information in all living organisms?

  • DNA (correct)
  • Protein
  • RNA
  • Lipid

What are the nitrogenous bases in DNA?

  • Adenine, Thymine, Guanosine, Cytidine
  • Adenine, Thymine, Guanine, Uracil
  • Adenine, Thymine, Guanine, Cytosine (correct)
  • Adenine, Thymine, Cytosine, Ribose

What is the structure of DNA?

  • Double helix (correct)
  • Quad helix
  • Single helix
  • Triple helix

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