BiomoleculesHard

Question

Nucleotide are building blocks of nucleic acids. Each nucleotide is a composite molecule formed by

Options

A.base-sugar-phosphate
B.base-sugar-OH
C.(base-sugar-phosphate)n 
D.sugar-phosphate

Solution

Nucleotides are the building of nucleic acids (DNA and RNA). A single nucleotide is composed of a phosphate molecules, a five carbon sugar (either ribose or deoxyribose) and a purine (adenine or guanine) or a pyrimidine (thymine or cytosine or uracil) nitrogenous base.
Nucleoside = Base + Sugar
Nucleotide = Base + Sugar + Phosphate

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