객관식
Which of the following is not a component of nucleotides?
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34. Nucleic Acids
Naming Nucleosides and Nucleotides
객관식
Which of these is a nucleotide?
A
Adenosine
B
Adenosine triphosphate ()
C
Guanosine
D
Cytidine
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검증된 단계별 안내1
Understand the structure of a nucleotide: A nucleotide consists of three components - a nitrogenous base, a five-carbon sugar (ribose or deoxyribose), and one or more phosphate groups.
Identify the components in each option: Adenosine, Guanosine, and Cytidine are nucleosides, which means they consist of a nitrogenous base and a sugar, but lack the phosphate group.
Recognize that a nucleotide must include a phosphate group in addition to the base and sugar.
Examine the given options: Adenosine triphosphate (ATP) includes adenosine (a nucleoside) and three phosphate groups, making it a nucleotide.
Conclude that among the options, Adenosine triphosphate (ATP) is the only one that fits the definition of a nucleotide, as it contains all three necessary components: a nitrogenous base, a sugar, and phosphate groups.
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