객관식
In the context of DNA structure, the monomers (building blocks) of DNA and RNA are:
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7. DNA and Chromosome Structure
DNA Structure
객관식
In double-stranded DNA, adenine (A) always pairs with which base according to Watson-Crick base pairing rules?
A
Thymine (T)
B
Cytosine (C)
C
Guanine (G)
D
Uracil (U)
검증된 단계별 안내1
Recall the Watson-Crick base pairing rules which describe how nitrogenous bases pair in double-stranded DNA.
Identify that adenine (A) is a purine base, which pairs specifically with a pyrimidine base to maintain uniform DNA structure.
According to the rules, adenine (A) pairs with thymine (T) through two hydrogen bonds.
Note that cytosine (C) pairs with guanine (G), and uracil (U) is found only in RNA, not DNA.
Therefore, adenine (A) always pairs with thymine (T) in double-stranded DNA.
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