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Multiple Choice
Which of the following components are part of a nucleotide?
A
A nitrogenous base and a sugar
B
A nitrogenous base and a phosphate group
C
A sugar and a phosphate group
D
A nitrogenous base, a sugar, and a phosphate group
Verified step by step guidance
1
Understand the structure of a nucleotide: A nucleotide is the basic building block of nucleic acids, such as DNA and RNA.
Identify the components of a nucleotide: A nucleotide consists of three components: a nitrogenous base, a sugar, and a phosphate group.
Recognize the nitrogenous bases: The nitrogenous bases can be purines (adenine and guanine) or pyrimidines (cytosine, thymine, and uracil).
Identify the sugar component: In DNA, the sugar is deoxyribose, while in RNA, it is ribose.
Understand the role of the phosphate group: The phosphate group links the nucleotides together through phosphodiester bonds, forming the backbone of nucleic acid structures.