OBJECTIVE LIFE SCIENCE
MOLECULAR BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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How does RNA differ from DNA?
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RNA contains the sugar deoxyribose instead of ribose.
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RNA contains the nitrogen base thymine instead of uracil.
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RNA consists of one nucleotide chain instead of two.
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None of the above
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Explanation:
Detailed explanation-1: -DNA is usually double-stranded, with both strands parallel in directionality, whereas RNA is usually single-stranded. DNA nucleotides lack an oxygen atom, whereas RNA nucleotides can form an additional covalent bond with the extra oxygen atom.
Detailed explanation-2: -Correct answer: RNA has the base thymine and DNA has the base uracil. Explanation: RNA differs from DNA in that it has a single helix, and that instead of thymine, it contains uracil.
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