Final answer:
Nucleic acids are essential molecules with primary structures determined by nucleotide sequences. They include DNA, RNA, and ATP, serving key roles in genetics and cellular functions.
Explanation:
Nucleic acids are molecules made up of nucleotides that play essential roles in directing cellular activities such as cell division and protein synthesis. They include DNA, which carries genetic information, RNA involved in protein synthesis, and ATP, the universal energy currency.
Nucleic acids exhibit primary, secondary, and tertiary levels of structure. The primary structure of nucleic acids is determined by the sequence of nucleotides. Unlike proteins made up of amino acids, nucleic acids consist of four different nucleotides.
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