객관식
Which nitrogenous base is unique to RNA, and which is unique to DNA?
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7. DNA and Chromosome Structure
DNA Structure
객관식
In the context of DNA structure, which letter represents the sugar component in the nucleotide backbone?
A
N
B
A
C
G
D
D
검증된 단계별 안내1
Recall the structure of a nucleotide, which consists of three components: a phosphate group, a sugar molecule, and a nitrogenous base.
Understand that in DNA, the sugar component is deoxyribose, which forms part of the backbone along with phosphate groups.
Recognize that the letters N, A, and G typically represent nitrogenous bases: N is not standard, A stands for adenine, and G stands for guanine.
Note that the sugar component is not represented by a letter like the bases; instead, it is often denoted as 'S' or simply referred to as the sugar in diagrams.
Therefore, identify that none of the letters N, A, or G represent the sugar component; the sugar is a distinct chemical structure, not symbolized by these letters.
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