Nucleotides are building blocks of nucleic acids. Each nucleotide is a composite molecule formed by
A
Base-sugar-OH
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B
Base-sugar-phosphate
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C
Sugar-phosphate
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D
(Base-sugar-phosphate)n
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Solution
The correct option is B Base-sugar-phosphate
Nucleotides are organic molecules that serve as the monomers, or subunits, of nucleic acids like DNA and RNA. The building blocks of nucleic acids, nucleotides are composed of a nitrogenous base, a five-carbon sugar ; ribose or deoxyribose, and at least one phosphate group.