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The diagram shows the chemical structure of a nucleotide.

A molecular structure represents a nitrogenous base as two polygons, then a 5-carbon sugar as a pentagon, and then a phosphate group as a sphere.

How does a polymer of nucleotides encode genetic information?

A. by the sequence of nitrogenous bases
B. by the sequence of 5-carbon sugars
C. by attaching sulfur groups to the phosphate groups
D. by attaching carbohydrates to the 5-carbon sugars

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BioWizard

The correct answer is: A. by the sequence of nitrogenous bases

The genetic code is the set of rules which is represented by the specific order of nucleotide bases. It is used by cells to translate information encoded within genetic material (DNA) into proteins. The genetic code consists of nucleotide triplets-codons, specify which amino acid will be added next during protein synthesis.