Final answer:
Nucleic acids are made up of building blocks called nucleotides, which consist of a sugar molecule, a phosphate group, and a nitrogenous base. These building blocks determine the genetic information carried by nucleic acids.
Step-by-step explanation:
Nucleic acids, such as DNA and RNA, are made up of building blocks called nucleotides. A nucleotide consists of a sugar molecule, a phosphate group, and a nitrogenous base. The specific sequence of nucleotides in a nucleic acid determines the genetic information it carries. Therefore, nucleotides are the basic units that make up nucleic acids.
Learn more about Building blocks of nucleic acids