Multiple Choice
In RNA, which nitrogenous base forms complementary base pairing with adenine (A)?
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7. DNA and Chromosome Structure
RNA
Multiple Choice
Which of the following statements is correct regarding RNA?
A
RNA typically contains ribose sugar and uses uracil in place of thymine.
B
RNA is usually double-stranded and forms a stable double helix like DNA.
C
RNA cannot function as a catalyst in any biological reactions.
D
RNA contains deoxyribose sugar and uses thymine as one of its bases.
Verified step by step guidance1
Recall the basic structural differences between RNA and DNA. RNA contains ribose sugar, whereas DNA contains deoxyribose sugar.
Understand the nitrogenous bases in RNA: RNA uses uracil (U) instead of thymine (T), which is found in DNA.
Consider the typical structure of RNA: RNA is usually single-stranded, not double-stranded like DNA, and does not form a stable double helix.
Recognize the functional versatility of RNA: RNA can act as a catalyst in biological reactions (ribozymes), so the statement that RNA cannot function as a catalyst is incorrect.
Based on these points, identify the correct statement as the one that says RNA contains ribose sugar and uses uracil in place of thymine.
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