which is nucleic acid? Nucleic acids and proteins are important macromolecules unique to organisms. Not only are nucleic acids the basic components of all biological cells, but they also play a major role in the growth, development, reproduction, inheritance and mutation of biological organisms. There are two major types of ribonucleic acid (DNA) and ribonucleic acid (RNA), which are connected by the 3 and 5 phosphate bonds of nucleotides. From this, it can be inferred that the following explanation of "nucleic acid" is incorrect? ['Nucleic acids are important macromolecules unique to organisms, and are the basic components of all biological cells.', 'Nucleic acids are divided into two major types: deoxyribonucleic acid and ribonucleic acid, which are connected by phosphate bonds at the 3 and 5 positions of nucleotides.', 'The nucleic acid is a mixture of nucleotides, nucleosides, and bases.', 'The nucleic acid is a substance that dominates major life phenomena of an organism.']