Multiple Choice
Which of the following bases are found in RNA?
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3. Chemical Reactions
Functional Groups in Chemistry
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Which of the following nitrogenous bases is found only in RNA and not in DNA?
A
Cytosine
B
Adenine
C
Uracil
D
Thymine
Verified step by step guidance1
Understand that DNA and RNA are nucleic acids composed of nitrogenous bases paired with sugar and phosphate groups.
Recall that both DNA and RNA contain the bases adenine (A), cytosine (C), and guanine (G), but differ in one of their bases.
Identify that DNA contains thymine (T) as one of its bases, while RNA contains uracil (U) instead of thymine.
Recognize that uracil is unique to RNA and does not appear in DNA, making it the nitrogenous base found only in RNA.
Conclude that among the options given, uracil is the nitrogenous base exclusive to RNA.
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