객관식
Which structural feature is shared by both DNA and RNA molecules?
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7. DNA and Chromosome Structure
RNA
Multiple Choice
Which nitrogenous base is present in RNA but not in DNA?
A
Adenine
B
Guanine
C
Thymine
D
Uracil
검증된 단계별 안내1
Recall the four nitrogenous bases found in DNA: Adenine (A), Thymine (T), Cytosine (C), and Guanine (G).
Recall the four nitrogenous bases found in RNA: Adenine (A), Uracil (U), Cytosine (C), and Guanine (G).
Compare the bases in DNA and RNA to identify which base is unique to RNA and not found in DNA.
Note that Thymine (T) is present in DNA but replaced by Uracil (U) in RNA.
Conclude that Uracil is the nitrogenous base present in RNA but not in DNA.
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