A nucleotide is composed of which three components?

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Multiple Choice

A nucleotide is composed of which three components?

Explanation:
A nucleotide is built from three components: a five-carbon sugar, a phosphate group, and a nitrogen-containing base. The sugar (deoxyribose in DNA or ribose in RNA) provides the backbone, while the phosphate group links to the sugar to form phosphodiester bonds that connect nucleotides into a chain. The base carries genetic information and pairs with a complementary base on the opposite strand through hydrogen bonds, enabling the double-stranded DNA structure or functional RNA interactions. The other descriptions mix in features of DNA structure or other biomolecules, but they do not specify the essential parts that make up a single nucleotide.

A nucleotide is built from three components: a five-carbon sugar, a phosphate group, and a nitrogen-containing base. The sugar (deoxyribose in DNA or ribose in RNA) provides the backbone, while the phosphate group links to the sugar to form phosphodiester bonds that connect nucleotides into a chain. The base carries genetic information and pairs with a complementary base on the opposite strand through hydrogen bonds, enabling the double-stranded DNA structure or functional RNA interactions. The other descriptions mix in features of DNA structure or other biomolecules, but they do not specify the essential parts that make up a single nucleotide.

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