Final answer:
The monomers of nucleic acid molecules, which include DNA and RNA, are called nucleotides. Nucleotides are comprised of a phosphate group, a pentose sugar, and a nitrogenous base.
Step-by-step explanation:
The Monomers of Nucleic Acids
The building blocks (monomers) of nucleic acid molecules are called nucleotides. Nucleic acids like DNA and RNA are vital for storing and transmitting genetic information. Nucleotides themselves are composed of three parts: a phosphate group, a pentose sugar, and a nitrogenous base. There are two main types of nucleic acids: DNA, which contains the sugar deoxyribose, and RNA, which contains the sugar ribose.
Each nucleotide's structure enables it to connect with other nucleotides to form the long chains needed to create DNA and RNA strands. In DNA, the sequence of nitrogenous bases encodes the genetic instructions used in the development and functioning of all living organisms and many viruses. Therefore, the correct answer to the question is (c) Nucleotides.