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      Question

      Which of these statements are accurate regarding the

      molecular structures of DNA and RNA? Statements:┬а 1. DNA is a doublestranded molecule, while RNA is typically singlestranded.┬а 2. RNA contains the sugar ribose, while DNA contains the sugar deoxyribose.┬а 3. Both DNA and RNA utilize the nitrogenous base thymine.
      A Statements 1 and 2 only Correct Answer Incorrect Answer
      B All statements are correct Correct Answer Incorrect Answer
      C Statements 2 and 3 only Correct Answer Incorrect Answer
      D Statements 1 and 3 only Correct Answer Incorrect Answer

      Solution

      DNA is indeed a doublestranded molecule, contrasting with the generally singlestranded RNA. DNA incorporates deoxyribose sugar, whereas RNA contains ribose sugar. Unlike DNA, which uses thymine, RNA uses uracil instead of thymine.

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