What are the monomer units of DNA?

What are the monomer units of DNA?

• A. Polypeptides
• B. Amino acids
• C. Nucleotides
• D. Fatty acids

Answer: (C)

The monomer units of DNA are nucleotides. Each nucleotide consists of three components: a phosphate group, a five-carbon sugar (deoxyribose in the case of DNA), and a nitrogenous base (which can be adenine, thymine, cytosine, or guanine). These nucleotides link together through phosphodiester bonds to form the long strands of DNA, which contain the genetic instructions essential for the development, functioning, growth, and reproduction of all known organisms and many viruses. Understanding the structure of nucleotides provides insight into how DNA is formed, replicated, and how it carries genetic information. This distinction from other biological macromolecules such as polypeptides, amino acids, and fatty acids is crucial in comprehending the unique roles that DNA plays in biology and genetics.

The monomer units of DNA are nucleotides. Each nucleotide consists of three components: a phosphate group, a five-carbon sugar (deoxyribose in the case of DNA), and a nitrogenous base (which can be adenine, thymine, cytosine, or guanine). These nucleotides link together through phosphodiester bonds to form the long strands of DNA, which contain the genetic instructions essential for the development, functioning, growth, and reproduction of all known organisms and many viruses.

Understanding the structure of nucleotides provides insight into how DNA is formed, replicated, and how it carries genetic information. This distinction from other biological macromolecules such as polypeptides, amino acids, and fatty acids is crucial in comprehending the unique roles that DNA plays in biology and genetics.