객관식
In DNA structure, adenine (A) always pairs with which nitrogenous base through hydrogen bonding?
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7. DNA and Chromosome Structure
DNA Structure
객관식
In DNA structure, which nitrogenous base forms complementary base-pairing with cytosine (C)?
A
Uracil (U)
B
Guanine (G)
C
Thymine (T)
D
Adenine (A)
검증된 단계별 안내1
Recall the base-pairing rules in DNA, which state that specific nitrogenous bases pair with each other through hydrogen bonds.
Identify that cytosine (C) is a pyrimidine base, and in DNA, it pairs with a purine base.
Remember that in DNA, cytosine (C) pairs specifically with guanine (G) through three hydrogen bonds.
Note that thymine (T) pairs with adenine (A), and uracil (U) is found in RNA, not DNA.
Conclude that the complementary base to cytosine (C) in DNA is guanine (G).
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