Multiple Choice
Which of the following best describes RNA?
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7. DNA and Chromosome Structure
RNA
Multiple Choice
Which nitrogenous base is not found in RNA?
A
Thymine
B
Adenine
C
Guanine
D
Uracil
Verified step by step guidance1
Recall the four nitrogenous bases found in DNA: Adenine (A), Thymine (T), Guanine (G), and Cytosine (C).
Understand that RNA also contains four nitrogenous bases, but one of them differs from DNA.
Identify the bases in RNA: Adenine (A), Uracil (U), Guanine (G), and Cytosine (C).
Note that Uracil (U) replaces Thymine (T) in RNA, meaning Thymine is not present in RNA.
Conclude that the nitrogenous base not found in RNA is Thymine.
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