객관식
Which nitrogen-containing base is found in but not in ?
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34. Nucleic Acids
Nitrogenous Bases
Multiple Choice
In DNA, what does adenine pair with?
A
Guanine
B
Cytosine
C
Uracil
D
Thymine
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검증된 단계별 안내1
Understand the basic structure of DNA, which is a double helix composed of two strands running in opposite directions.
Recognize that DNA is made up of four types of nitrogenous bases: adenine (A), thymine (T), cytosine (C), and guanine (G).
Recall the base pairing rules in DNA, which state that adenine (A) pairs with thymine (T) and cytosine (C) pairs with guanine (G).
Note that these base pairs are held together by hydrogen bonds, with adenine and thymine forming two hydrogen bonds.
Conclude that in DNA, adenine pairs with thymine, following the complementary base pairing rule.
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