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What is the monomer of the DNA molecule?

Question

What is the monomer of the DNA molecule?

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Solution

The monomer of the DNA molecule is called a nucleotide. A nucleotide is composed of three parts:

  1. A nitrogenous base: There are four types of nitrogenous bases in DNA - Adenine (A), Thymine (T), Guanine (G), and Cytosine (C).

  2. A sugar molecule: In DNA, this sugar is deoxyribose, which is a pentose sugar. This is where the 'D' in DNA comes from - DeoxyriboNucleic Acid.

  3. A phosphate group: This group allows the nucleotides to link together to form the long chains found in DNA.

These three components combine to form a nucleotide, and these nucleotides link together to form the DNA molecule. The sequence of these nucleotides is what determines the genetic information carried in the DNA.

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