A nucleotide has three components. Which one of the following is not involved in these?

DNA

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A nitrogenous base

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A pentose sugar

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A phosphate group

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Solution

The correct option is A DNA
A nucleotide has three component, a nitrogenous base, a pentose sugar (nucleoside) and a phosphate group.
DNA is a long chain of nucleotides.
So the correct answer is option A.

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State whether true or false:

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

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