Each nucleotide consists of a pentose sugar, nitrogenous base and a

phosphate group

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sulphate group

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ammonium group

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chloride group

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Solution

The correct option is A phosphate group
DNA are polymers made of long chains of nucleotide. A nucleotide is the basic structural unit and building block for DNA. A nucleotide has 3 components - a nitrogenous base, pentose sugar and a phosphate group.

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State whether true or false:

A nucleotide consists of a pentose sugar molecule, a nitrogenous base, and a phosphate group.

A nucleotide consists of a sugar molecule, a nitrogenous base, and a phosphate group.

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