객관식
Which components form the backbone of a DNA molecule?
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7. DNA and Chromosome Structure
DNA Structure
객관식
Which nitrogenous base is not found in RNA?
A
Uracil
B
Thymine
C
Adenine
D
Cytosine
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).
Note that RNA contains Uracil instead of Thymine, which is present in DNA.
Understand that Thymine is replaced by Uracil in RNA, so Thymine is not found in RNA.
Therefore, the nitrogenous base not found in RNA is Thymine.
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