What macromolecule is made up of nucleic acids?
Nucleic acids link the two strands of the DNA double helix together.
DNA and RNA.
DNA (deoxyribonucleic acid) is the most common form genetic material found in many organisms.
RNA (ribonucleic acid) is also found as a genetic material (and not DNA) in some organisms like viruses. Viruses could have ssRNA (single stranded RNA) or dsRNA (double stranded RNA) as their genetic material.
However, RNA is mostly single stranded, unlike DNA, which is double stranded always. Some types of RNA are: messenger RNA (mRNA), ribosomal RNA (rRNA), transfer RNA (tRNA) , etc.
For more info, you can refer to the following link: https://www.khanacademy.org/science/biology/gene-expression-central-dogma/central-dogma-transcription/a/nucleic-acids
Hope this helps!